* Part I Blitzkrieg September 1, 1939: a new kind of warfare engulfs Poland, TIME, Monday, August 28, 1989* Radio Tower Museum in Gliwice: Gliwice provocation.
==External links==* Part I Blitzkrieg September 1, 1939: a new kind of warfare engulfs Poland, TIME, Monday, 28 August 1989* Radio Tower Museum in Gliwice: Gliwice provocation.