EBSEES: 3 hits for Piotrowski, Bernard

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 Piotrowski, Bernard provides 3 hits
1	Dylematy pomocy alianckiej dla walczącej Finlandii (1939-1940)" (Dilemmas of allied assistance for Finland, 1939-40) Piotrowski, Bernard, in: Mars, 3, 1995, p. 37-49
2	Aneksja przez ZSSR republik nadbałtyckich (1939-1940). Aspekty wojskowe i polityczno-prawne (The USSR's annexation of the Baltic States 1939-40: military and politico-legal aspects) Piotrowski, Bernard, in: Mars, 5, 1997, p. 101-24
3	Aneksja przez ZSRR republik nadbaltyckich (1939-1940). Aspekty wojskowe i polityczno-prawne (The USSR's annexation of the Baltic States 1939-40: its military, legal and political aspects) Piotrowski, Bernard, in: Mars, 5, 1997, 2000, p. 101-24; 9, , p. 119-42

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

Dylematy pomocy alianckiej dla walczącej Finlandii (1939-1940)" (Dilemmas of allied assistance for Finland, 1939-40)

Aneksja przez ZSSR republik nadbałtyckich (1939-1940). Aspekty wojskowe i polityczno-prawne (The USSR's annexation of the Baltic States 1939-40: military and politico-legal aspects)

Aneksja przez ZSRR republik nadbaltyckich (1939-1940). Aspekty wojskowe i polityczno-prawne (The USSR's annexation of the Baltic States 1939-40: its military, legal and political aspects)