The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

The European Bibliography of Slavic and East European Studies (EBSEES) collects books, journal articles, reviews and dissertations from Eastern Europe (former countries of Eastern Bloc) which were published in Belgium, Germany, Finland, France, Great Britain, the Netherlands, Austria and Switzerland from 1991 to 2007. The segment "Literature" and "Culture" of the European Bibliography of Slavic and East European Studies contains 18.000 bibliographic entries (from the total asset of 85.000). More information can be found here.

Your search for Väänanen, Kyösti provides 2 hits
1	Herdaminne för Ingermanland (Hirtenbuch für Ingermanland) Väänanen, Kyösti, Helsingfors, Svenska Literatursällskapet i Finland, 1987
2	Protestanttipapit Venäjän valtakunnassa 1500-luvun lopulta vuoteen 1937 (Protestant clergymen in Russia from the end of the 16th century to the year 1937) Väänänen, Kyösti, in: Suomen kirkkohistoriallisen seuran vuosikirja, 87-88, 1999, p. 709-13

The European Bibliography of Slavic and East European Studies (EBSEES) - 1991-2007

Herdaminne för Ingermanland (Hirtenbuch für Ingermanland)

Protestanttipapit Venäjän valtakunnassa 1500-luvun lopulta vuoteen 1937 (Protestant clergymen in Russia from the end of the 16th century to the year 1937)