Yeltsin's joint press conference with President of Finland Martti Ahtisaari at the Kremlin on 18 May 1994; Many Karelias Virtual Finland, November 2001, archived 2 February 2009 from the original(in Finnish)
rkka.ru
Pavel Aptekar in article Casus Belli using casualty reports as sources (Там же Оп.10 Д.1095 Л.37,42,106.130,142) (in Russian)
web.archive.org
Yeltsin's joint press conference with President of Finland Martti Ahtisaari at the Kremlin on 18 May 1994; Many Karelias Virtual Finland, November 2001, archived 2 February 2009 from the original(in Finnish)