Spymaster : the real-life Karla, his moles, and the East German secret police / Leslie Colitt
Reading, Mass. : Addison-Wesley Pub., 1995. - 302 p. : ill. ; 24 cm
Includes bibliographical references (p. 285-286) and index
ISBN 0201407388

Wolf, Markus 1923- ; Służba bezpieczeństwa - Niemcy(NRD) - 1949-1989 r