Writer Igor Witkowski has speculated that Mazuw was involved in secret programs to develop a Wunderwaffe, a new type of weapon supposed to change the course of the second world war.
InThe Truth About The Wunderwaffe (2003), originally published in Polish as Prawda o Wunderwaffe (2000), Witkowski claims to have discovered the existence of the alleged German secret project Die Glocke from transcripts of an interrogation by Polish authorities of former Nazi officer Jakob Sporrenberg.