A novel design for cruiser type motorcycle silencer based on micro-perforated elementsKabral, Raimo; Rämmal, Hans; Auriemma, Fabio; Luppin, Janek; Kõiv, Risto; Tiikoja, Heiki; Lavrentjev, JüriSAE technical papers2012 https://www.researchgate.net/publication/236005547_A_Novel_Design_for_Cruiser_Type_Motorcycle_Silencer_Based_on_Micro-Perforated_Elements Acoustic studies on porous sintered powder metalsLuppin, Janek; Auriemma, FabioProceedings of the 9th International Conference of DAAAM Baltic Industrial Engineering, 24-26th April 2014, Tallinn, Estonia2014 / p. 47-52 : ill Estimating the potential of a warning system preventing road accidents at pedestrian crossingsEss, Juri; Luppin, Janek; Antov, DagoLogForum : Scientific journal of logistics2021 / p. 441-452 : ill https://doi.org/10.17270/J.LOG.2021.605 https://www.logforum.net/pdf/17_3_10_21.pdf Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Mida suudavad välja uurida autotehnika eksperdid?Riik, Marvel; Luppin, Janek; Rämmal, HansÕhtuleht2016 / lk. 6-7 TTÜ/TTK meeskond võistles Silverstone'i ringrajal : [tootearendusvõistlusel Formula Student]Luppin, JanekStudioosus2008 / okt., lk. 6