The most comprehensive source on the case is a pamphlet of 16 pages published in London in 1590, the translation of a German print of which no copies have survived. The English pamphlet, of which two copies exist (one in the British Museum and one in the Lambeth Library), was rediscovered by occultist Montague Summers in 1920. It describes Stumpp's life, alleged crimes and the trial, and includes many statements from neighbours and witnesses of the crimes. Summers reprints the entire pamphlet, including a woodcut, on pages 253 to 259 of his work "The Werewolf".