Co-operation of Estonia's oil shale based power system with wind turbinesLiik, Olev; Oidram, Rein; Keel, Matti; Ojangu, Jaanus; Landsberg, Mart; Dorovatovski, NikolaiOil shale2005 / 2S, p. 127-142 : 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 Problems related to grid connection in Pakri Wind ParkOidram, Rein; Landsberg, Mart; Agabus, Hannes; Attikas, Raivo; Ojangu, Jaanus; Palu, IvoNordic Wind Power Conference - NWPC'2006 : Grid Integration and Electrical Systems of Wind Turbines and Wind Farms : 22-23 May 2006, Hanasaari, Espoo, Finland2006 / [4] p. : ill Professor Olev Liik oli elektroenergeetika esinumber Eestis : [kolleegide Tiit Metusala ja Jaanus Ojangu kommentaaridega]Aru, Erik; Metusala, Tiit; Ojangu, JaanusEesti Päevaleht2005 / lk. 12 : fot (Äripäev) 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