EBSEES: 2 hits for Steckiewicz, Stanisław

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 Steckiewicz, Stanisław provides 2 hits
1	Przerzuty osób, materiałów i przesylek pocztowych pomiędzy Warszaw=a i Wilnem w działności SZP - ZWZ - AK w latach 1939-1945" (The activities of the Resistance in the transfer of persons, materials and post between Warsaw and Vilnius) Steckiewicz, Stanisław, in: Mars, 6, 1998, 2000, p. 177-98; 9, , p. 169-219
2	Z dziejów polskiego wywiadu na Litwie w czasie II Wojny Światowej (Polish intelligence activities in Lithuania during World War II) Mackiewicz, Ryszard; Steckiewicz, Stanisław, in: Mars, 6, 1998, p. 167-76

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

Przerzuty osób, materiałów i przesylek pocztowych pomiędzy Warszaw=a i Wilnem w działności SZP - ZWZ - AK w latach 1939-1945" (The activities of the Resistance in the transfer of persons, materials and post between Warsaw and Vilnius)

Z dziejów polskiego wywiadu na Litwie w czasie II Wojny Światowej (Polish intelligence activities in Lithuania during World War II)