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 Szczęśniak, Andrzej provides 2 hits
1	Blick über die Grenze - Zur Frage der Didaktik des Geschichtsunterrichts heute in der Republik Polen Szczęśniak, Andrzej, in: Erziehung und Unterricht, 1, 1992, p. 40-43
2	Katyn. Der Massenmord an polnischen Offizieren Kaiser, Gerhard; Szczęśniak, Andrzej L., Berlin, Ch. Links Verl., 1991, 336 p

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

Blick über die Grenze - Zur Frage der Didaktik des Geschichtsunterrichts heute in der Republik Polen

Katyn. Der Massenmord an polnischen Offizieren