1 2 “Battles: Ladoga Karelia Area”(Film microsite).Fire and Ice: The Winter War of Finland and Russia. Indiana, United States: Metropolitan Indianapolis Public Broadcasting (WYFI).2010年1月19日閲覧。“on December 7th [1939] elements of the Soviet 56th Division reached the area of the Kollaa River. ... the Kollaa River area was the location the Finns were forced to make their stand.”
↑ Snodgrass, Brent(2002年4月7日).“Finnish sniper Simo Häyhä during the Winter War”.Mosin Man's Military Surplus Firearms.2010年1月19日閲覧。“Simo Häyhä was called into action during the Winter War with his service under the 6th Company of JR 34 on the Kollaa River.”
↑ “1929 Kollaa (1939 BS)”.JPL Small-Body Database Browser. California, United States: NASA Jet Propulsion Laboratory.2010年1月19日閲覧。“Named for a river in Karelia, scene of violent battles during the Finnish winter war.”
