About optimal reserves in power systemsKilk, Kalle; Valdma, Mati5th International Symposium "Topical Problems in the Field of Electrical and Power Engineering". Doctoral School of Energy and Geotechnology : Kuressaare, January 14-19, 20082008 / p. 20-23

Analysis of power demand and wind power changes in power systemsKeel, Matti; Kilk, Kalle; Valdma, MatiOil shale2009 / 3S, p. 228-242 : ill

Determination of optimal operating reserves in power systemsKilk, Kalle; Valdma, MatiOil shale2009 / 3S, p. 220-227

Eesti Energia stipendiaadid VirumaalKilk, KalleTallinna Ülikoolid1998 / 3, lk. 40-41: ill

Possibilities to develop the use of wind energy in Saaremaa islandLiik, Olev; Landsberg, Mart; Ojangu, Jaanus; Kilk, Kalle; Agabus, HannesScientific proceedings of Riga Technical University. Serija 4, Power and electrical engineering2005 / p. 86-93 : ill

Principles of modeling large wind parksAttikas, Raivo; Kilk, Kalle3rd International Symposium "Topical Problems of Education in the Field of Electrical and Power Engineering" : Doctoral School of Energy and Geotechnology : Kuressaare, Estonia, January 16-21, 20062006 / p. 128-132 : ill

20-110 kV network development plan for SaaremaaOjangu, Jaanus; Kilk, Kalle2nd International Symposium "Topical Problems of Education in the Field of Electrical and Power Engineering" : Kuressaare, Estonia, January 17-22, 20052005 / p. 108-112 : ill., map

Variations of power demand and wind power generation and their influence to the operation of power systems = Elektritarbimise ja tuulegeneraatorite võimsuse muutused ja nende mõju elektrisüsteemi talitluseleKilk, Kalle2009