Barbara Bojarska is a Polish historian , prize-winning author , and former long-term research scientist at the Western Institute ( '' Instytut Zachodni '' ) in Poznań , where she received her doctorate for the work about Massacres in Piaśnica . Her books are devoted almost entirely to history of Pomerania with special focus on the World War II atrocities committed against ethnic Poles by Nazi Germany during Operation Tannenberg
Operation Tannenberg
Operation Tannenberg
Barbara Bojarska