The Porsche Tiger and Ferdinand Tank Destroyer: VK 4501 (P) / Porsche Type 101 and the Panzerjäger Ferdinand/Elefant: Fröhlich, Michael: 9780764363511: Amazon.com: Books
Maus 2 : r/WorldofTanks
Maus 2 : r/WorldofTanks
Kampfpanzer Maus: The Porsche Type 205 Super-Heavy Tank: Fröhlich, Michael: 9780764350788: Amazon.com: Books