* Dennis Whitehead, "The Gleiwitz Incident", "After the Battle Magazine" Number 142 (March 2009)* Stanley S. Seidner, "Marshal Edward Śmigły-Rydz Rydz and the Defense of Poland" , New York, 1978.
* Dennis Whitehead, "The Gleiwitz Incident", "After the Battle Magazine" Number 142 (March 2009)* Stanley S. Seidner, "Marshal Edward Śmigły-Rydz Rydz and the Defense of Poland", New York, 1978.