Airtightness of Estonian dwellings – median and base-values for heat loss estimationHallik, Jaanus; Kalamees, Targo; Pikas, ErgoJournal of Physics: Conference Series2023 / 9 p https://doi.org/10.1088/1742-6596/2654/1/012063

Analyses of the extra cost of NZEB and low energy apartment buildingsThalfeldt, Martin; Pikas, Ergo; Kurnitski, JarekWorld Sustainable Energy Days 2015 : Young Researchers' Conference : Energy Efficiency : 25-27 February 2015, Wels, Austria2015

Application of the domain theory to warehouse concept development : a case study [Online resource]Pikas, Ergo; Koskela, Lauri; Singh, Vishal; Dave, Bhargav; Liias, Roode; Sacks, RafaelProceedings of the CIB World Building Congress 2016. Volume V, Advancing Products and Services2016 / p. 374-385 : ill http://urn.fi/URN:ISBN:978-952-15-3745-5

Case study on design management : inefficiencies and possible remediesPikas, Ergo; Koskela, Lauri; Dave, Bhargav; Liias, RoodeGlobal Knowledge - Global Solutions : 23rd Annual Conference of the International Group for Lean Construction : Perth, Australia, July 29-31, 2015 : proceedings of IGLC232015 / p. 547-557 : ill

Causality and interpretation : a new design model inspired by the Aristotelian legacyPikas, Ergo; Koskela, Lauri; Seppänen, OlliConstruction management and economics2022 / p. 507-525 : ill https://doi.org/10.1080/01446193.2021.1934884 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Causality and interpretation : integrating the technical and social aspects of design = Põhjuslikkus ja tõlgendamine : projekteerimise tehniliste ja sotsiaalsete aspektide siduminePikas, Ergo2019 https://www.ester.ee/record=b5234938*est https://digi.lib.ttu.ee/i/?11966

Collaboration in design - justification, characteristics and related conceptsPikas, Ergo; Koskela, Lauri; Treldal, Niels; Ballard, Glenn; Liias, Roode24th Annual Conference of the International Group for Lean Construction : Boston, USA, 20-22 July 20162016 / p. 143-152 : ill http://iglc.net/Papers/Details/1270

Comparing the methods of A3 and canvasKoskela, Lauri; Broft, Rafaella D.; Pikas, Ergo; Tezel, AlganProceedings 28th Annual Conference of the International Group for Lean Construction (IGLC28), Berkeley, California, USA2020 / p. 13-24 https://doi.org/10.24928/2020/0136

Complexity in designing energy efficient buildings : towards understanding decision networks in designPikas, Ergo; Koskela, Lauri; Thalfeldt, Martin; Dave, Bhargav; Kurnitski, JarekGlobal Knowledge - Global Solutions : 23rd Annual Conference of the International Group for Lean Construction : Perth, Australia, July 29-31, 2015 : proceedings of IGLC232015 / p. 213-222 : ill

Construction with digital twin information systemsSacks, Rafael; Brilakis, Ioannis; Pikas, Ergo; Xie, Haiyan Sally; Girolami, MarkData-centric engineering2020 / art. e14, 26 p https://doi.org/10.1017/dce.2020.16

Cost optimal and nearly zero energy building solutions for office buildingsPikas, Ergo; Thalfeldt, Martin; Kurnitski, JarekEnergy and buildings2014 / p. 30-42 : ill

Cost-benefit analysis of nZEB energy efficiency strategies with on-site photovoltaic generationPikas, Ergo; Kurnitski, Jarek; Thalfeldt, Martin; Koskela, LauriEnergy2017 / p. 291-301 : ill https://doi.org/10.1016/j.energy.2017.03.158

Creation of digital twin models for renovation: an integrative literature reviewLõhmus, Daniel; Pikas, ErgoProceedings of the 2023 European Conference on Computing in Construction and the 40th International CIB W78 Conference2023 / art. 303649 https://doi.org/10.35490/EC3.2023.307

Design management in a design office : development of the knowledge basePikas, Ergo; Koskela, Lauri; Liias, Roode2017 Lean and Computing in Construction Congress (LC3), Volume II - Part 2 : proceedings of the 25th Annual Conference of the International Group for Lean Construction (IGLC), July 9-12, 2017, Heraklion, Crete, Greece2017 / p. 539-546 : ill http://www.lc3-2017.com/uploads/IGLC_Full_Proceedings-part_2.pdf https://doi.org/10.24928/2017/0316

Design management in a design office : development of the model for 'To-Be'Pikas, Ergo; Koskela, Lauri; Seppänen, Olli2017 Lean and Computing in Construction Congress (LC3), Volume II - Part 2 : proceedings of the 25th Annual Conference of the International Group for Lean Construction (IGLC), July 9-12, 2017, Heraklion, Crete, Greece2017 / p. 555-562 : ill https://doi.org/10.24928/2017/0317 http://www.lc3-2017.com/uploads/IGLC_Full_Proceedings-part_2.pdf

Design management in a design office : solving the problem of relevancePikas, Ergo; Koskela, Lauri; Seppänen, Olli2017 Lean and Computing in Construction Congress (LC3), Volume II - Part 2 : proceedings of the 25th Annual Conference of the International Group for Lean Construction (IGLC), July 9-12, 2017, Heraklion, Crete, Greece2017 / p. 547-554 : ill http://www.lc3-2017.com/uploads/IGLC_Full_Proceedings-part_2.pdf https://doi.org/10.24928/2017/0315

Digital last planner system whiteboard for enabling remote collaborative design process planning and controlPikas, Ergo; Pedo, Barbara; Tezel, Algan; Koskela, Lauri; Veersoo, MarkusSustainability2022 / art. 12030 https://doi.org/10.3390/su141912030 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Energy and investment intensity of integrated renovation and 2030 cost optimal savingsKurnitski, Jarek; Kuusk, Kalle; Tark, Teet; Uutar, Aivar; Kalamees, Targo; Pikas, ErgoEnergy and buildings2014 / p. 51-59 : ill

Epistemological explanation of lean constructionKoskela, Lauri; Ferrantelli, Andrea; Niiranen, Jarkko; Pikas, Ergo; Dave, BhargavJournal of construction engineering and management2019 / p. 04018131-1 -04018131-10 https://doi.org/10.1061/(ASCE)CO.1943-7862.0001597 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Exploration towards the development of a concept and requirements for FMBIM information management : research report [Online resource]Pikas, Ergo; Tamme, Mats; Liias, Roode2016 http://www.rkas.ee/files/Exploration%20Towards%20the%20Development%20of%20the%20FMBIM%20Information%20Concepts%20and%20Requirements%20Pikas.pdf

Extra cost analyses of two apartment buildings for achieving nearly zero and low energy buildingsPikas, Ergo; Thalfeldt, Martin; Kurnitski, Jarek; Liias, RoodeEnergy2015 / p. 623-633 : ill

Extra cost analyses of two apartment buildings for achieving nearly zero and low energy buildingsPikas, Ergo; Thalfeldt, Martin; Kurnitski, Jarek; Liias, RoodeLiginullenergiahooned täna ja homme : artiklite kogumik2015 / p. 83-90 : ill

Facade design principles for nearly zero energy buildings in a cold climateThalfeldt, Martin; Pikas, Ergo; Kurnitski, Jarek; Voll, HendrikEnergy and buildings2013 / p. 309-321 : ill

Foundational concepts for BIMSacks, Rafael; Pikas, ErgoBIM Teaching and Learning Handbook : Implementation for Students and Educators2021 / p. 5-22 : ill https://doi.org/10.1201/9780367855192

From checklists to design process support systems: Initial framingPikas, Ergo; Koskela, Lauri; Oehmen, Josef; Dave, BhargavProceedings of the 27th Annual Conference of the International Group for Lean Construction (IGLC), IGLC 2019, 1 July 2019 - 7 July, 2019, Dublin, Ireland2019 / p. 83-96 https://doi.org/10.24928/2019/0173

Heat loss characteristics of typology-based apartment building external walls for a digital twin-based renovation strategy toolIliste, Elisa; Lomp, Siim; Pikas, Ergo; Arumägi, Endrik; Hallik, Jaanus; Õiger, Karl; Kisel, Einari; Liiv, Innar; Kalamees, TargoJournal of Physics: Conference Series2023 / 8 p https://doi.org/10.1088/1742-6596/2654/1/012125

If CPM is so bad, why have we been using it so long?Koskela, Lauri; Howell, Greg; Pikas, Ergo; Dave, BhargavProceedings of IGLC22 : 22nd Annual Conference of the International Group for Lean Construction : Understanding and Improving Project Based Production : Oslo Norway, June 25th-27th 20142014 / p. 27-37

Improving building design processes and design management practices: A case studyPikas, Ergo; Koskela, Lauri; Seppänen, OlliSustainability2020 / 18 p. : ill https://doi.org/10.3390/su12030911

Improving design quality by contractor involvement : an empirical study on effectsLappalainen, Eelon; Uusitalo, Petteri; Pikas, Ergo; Seppänen, Olli; Peltokorpi, Antti; Uusitalo, Petri; Reinbold, Ana; Menzhinskii, NikolaiBuildings2022 / art. 1188 https://doi.org/10.3390/buildings12081188 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Intelligent products : shifting the production control logic in construction (with lean and BIM)Dave, Bhargav; Kubler, Sylvain; Pikas, ErgoGlobal Knowledge - Global Solutions : 23rd Annual Conference of the International Group for Lean Construction : Perth, Australia, July 29-31, 2015 : proceedings of IGLC232015 / p. 341-350 : ill

Kaheksa uut tenuuriprofessoritSell, Raivo; Pikas, Ergo; Hints, Olle; Veski, Siim; Lahtvee, Petri-Jaan; Ottis, Rain; Kiviste, Mihkel; Ross, PeeterMente et Manu2021 / lk. 48-51 : portr Mente et Manu 1/2021 https://www.ester.ee/record=b1242496*est

Kas liginullenergiahoone vajab suuremat investeeringut?Pikas, Ergo; Thalfeldt, MartinEhitaja2015 / lk. 26-33 : ill

Koostöös planeerimine on eeldus edukaks projekteerimiseksPikas, Ergo; Aru, MinniEhitaja2019 / lk. 19-22 : ill http://www.ester.ee/record=b1072123*est

Kuidas viia Eestis sujuvalt läbi renoveerimislaine?Kisel, Einari; Kalamees, Targo; Pikas, Ergo; Liiv, Innar; Arumägi, EndrikMente et Manu2023 / lk. 40-41 : fot https://www.ester.ee/record=b1242496*est

Kvaliteedifilosoofia kolm vaala tuleb tuua Eesti ehituskultuuriTammaru, Enn; Pikas, ErgoEhitaja2017 / lk. 38-39 http://www.ester.ee/record=b1072123*est

Madalenergia büroohoone fassaadi majandusanalüüsThalfeldt, Martin; Pikas, Ergo; Kurnitski, JarekLiginullenergiahooned täna ja homme : artiklite kogumik2015 / lk. 52-58 : ill

Madalenergia büroohoone fassaadi majandusanalüüsThalfeldt, Martin; Pikas, Ergo; Kurnitski, JarekEhitaja2015 / lk. 22-25 : ill

Modularization : Exploring opportunities for knowledge transfer between the mechanical engineering and construction industryKohl, Markus; Wilberg, Julian; Tommelein, Iris D.; Pikas, Ergo; Lindemann, UdoProceedings of the 21st International Conference on Engineering Design ; Design Information and Knowledge; vol. 62017 / p. 227-236 Modularization...

Mõtemallid - suurim takistus projekteerimise korraldamisesPikas, ErgoEhitaja2018 / lk. 16-18 : ill http://www.ester.ee/record=b1072123*est

A new framework for construction project definition stagePikas, Ergo; Oehmen, Josef; Koskela, Lauri; Thuesen, ChristianDesign 2018 : Excellence in design : 15th International Design Conference, May, 21-24, 2018 - Dubrovnik, Croatia : [proceedings]2018 / p. 1301-1312 : ill https://doi.org/10.21278/idc.2018.0542

On epistemology of construction engineering and managementKoskela, Lauri; Pikas, Ergo; Niiranen, Jarkko; Ferrantelli, Andrea; Dave, Bhargav2017 Lean and Computing in Construction Congress (LC3), Volume II - Part 1 : proceedings of the 25th Annual Conference of the International Group for Lean Construction (IGLC), July 9-12, 2017, Heraklion, Crete, Greece2017 / p. 169-176 https://doi.org/10.24928/2017/0336 http://www.lc3-2017.com/uploads/IGLC_Full_Proceedings-part_1.pdf

Open-source, low-code, no-code : digitalization of renovation processesPikas, Ergo; Koskela, Lauri; Kalamees, Targo; Iliste, Elisa; Viik, Joosep5th International Conference Forum Wood Building Baltic : 26-28 February 2024, Tallinn, Estonia : proceedings2024 / p. 16-17 https://digikogu.taltech.ee/et/Item/22318c67-e0ef-42f1-88c7-34c9d9677b17

Quality and accuracy of digital twin models for the neighbourhood level building energy performance calculationsParts, Egert-Ronald; Pikas, Ergo; Parts, Tuule Mall; Arumägi, Endrik; Liiv, InnarE3S Web of Conferences : 11th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings, IAQVEC20232023 / art. 04021 https://doi.org/10.1051/e3sconf/202339604021

Quantification of building envelope heat losses on a district level for comparative renovation strategies assessmentArumägi, Endrik; Hallik, Jaanus; Pikas, Ergo; Kalamees, Targo; Liiv, Innar; Kisel, EinariJournal of Physics: Conference Series2023 / 10 p https://doi.org/10.1088/1742-6596/2654/1/012003

Quantification of economic benefits of renovation of apartment buildings as a basis for cost optimal 2030 energy efficiency strategiesPikas, Ergo; Kurnitski, Jarek; Liias, Roode; Thalfeldt, MartinEnergy and buildings2015 / p. 151-160 : ill

Quantification of the economic benefits of renovation of apartment buildings as a basis for cost optimal 2030Pikas, Ergo; Thalfeldt, MartinLiginullenergiahooned täna ja homme : artiklite kogumik2015 / p. 74-82 : ill

Review of lean design management : processes, methods and technologiesUusitalo, Petteri; Olivieri, Hylton; Seppänen, Olli; Pikas, Ergo; Peltokorpi, Antti2017 Lean and Computing in Construction Congress (LC3), Volume II - Part 2 : proceedings of the 25th Annual Conference of the International Group for Lean Construction (IGLC), July 9-12, 2017, Heraklion, Crete, Greece2017 / p. 571-578 : tab http://www.lc3-2017.com/uploads/IGLC_Full_Proceedings-part_2.pdf https://doi.org/10.24928/2017/0224

Rhetorical design game for expectation alignmentKoskela, Mikael; Pikas, ErgoProceedings of the Design Society: International Conference on Engineering Design2019 / p. 1593-1602 https://doi.org/10.1017/dsi.2019.165

The dual nature of design managementPikas, Ergo; Koskela, Lauri; Tredal, Niels; Knotten, Vegard; Bølviken, TrondEnvolving lean construction towards mature production management across cultures and frontiers : proceedings of the 26th Annual Conference of the International Group for Lean Construction : Volume 1 & 2, July 16th to 22nd 2018, Chennai, India2018 / p. 647–657 : ill https://doi.org/10.24928/2018/0537 http://iglc.net/Content/Proceedings/IGLC-2018-Proceedings-Vol1_Vol2.pdf

Timmitud ehituse seminaril kohtus teooria praktikagaPikas, ErgoEhitaja2013 / lk. 20, 22 : ill

Timmitud kavandamine väikeettevõttesPikas, ErgoEhitaja2019 / lk. 22-25 : ill http://www.ester.ee/record=b1072123*est

To trust or not to trust : is trust a prerequisite for solving design quality problems?Uusitalo, Petteri; Lappalainen, Eelon; Seppänen, Olli; Pikas, Ergo; Peltokorpi, Antti; Menzhinskii, Nikolai; Piitulainen, MikkoConstruction management and economics2021 / p. 279-297 https://doi.org/10.1080/01446193.2020.1865553

Total economy of windows and facades in low energy office buildingsThalfeldt, Martin; Kurnitski, Jarek; Voll, Hendrik; Pikas, ErgoThe REHVA European HVAC journal2014 / p. 19-24 : ill

Towards shared understanding on common ground, boundary objects and other related conceptsKoskela, Lauri; Pikas, Ergo; Gomes, Danilo24th Annual Conference of the International Group for Lean Construction : Boston, USA, 20-22 July 2016 : proceedings2016 / p. 63-72 http://iglc.net/Papers/Details/1352

University ecosystem for student startups : a 'platform of trust' perspectiveAinamo, Antti; Pikas, Ergo; Mikkelä, K.Educating Engineers for Future Industrial Revolutions : Proceedings of the 23rd International Conference on Interactive Collaborative Learning (ICL2020). Volume 22021 / p. 269–276 https://doi.org/10.1007/978-3-030-68201-9_28 https://acris.aalto.fi/ws/portalfiles/portal/86345674/ENG_Ainamo_et_al_University_ecosystem_for_student_startups_ICL2020.pdf Conference proceedings at Scopus Article at Scopus Article at WOS

Using real-time indoor resource positioning to track the progress of tasks in construction sitesZhao, Jianyu; Pikas, Ergo; Seppänen, Olli; Peltokorpi, AnttiFrontiers in Built Environment2021 / art. 66166 https://doi.org/10.3389/fbuil.2021.661166

ViBR - conceptualising a virtual big room through the framework of people, processes and technologyDave, Bhargav; Pikas, Ergo; Kerosuo, Hannele; Mäki, TarjaProcedia economics and finance2015 / p. 586-593 : ill

Window model and 5 year price data sensitivity to cost-effective facade solutions for office buildings in EstoniaThalfeldt, Martin; Pikas, Ergo; Kurnitski, Jarek; Voll, HendrikEnergy2017 / p. 685-697 : ill https://doi.org/10.1016/j.energy.2017.06.160

Wrong, but not failed? A study of unexpected events and project performance in 21 engineering projectsWied, Morten; Oehmen, Josef; Welo, Torgeir; Pikas, ErgoInternational journal of managing projects in business2021 / p. 1290-1313 https://doi.org/10.1108/IJMPB-08-2020-0270 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS