Lennhoff, E. Agents of hell ... 1940.

The strange death of Heinrich Himmler, 2002: CIP t.p. (Heinrich Himmler) galley (Reichsführer SS; b. Oct. 7, 1900; young "Heini"; committed suicide, May 23, 1945)

Genrikh Gimmler, 2005.

The trial that never ends, ©2017: page 199 (When it came to the main perpetrators, German law treated the Holocaust as the work of six or seven men: Hitler, Himmler, Heydrich (also at times Kaltenbrunner), Göring, Otto Globocnik, and Christian Wirth.)

Wikipedia, 6 June 2018: (Heinrich Luitpold Himmler; 7 October 1900-23 May 1945) was Reichsführer of the Schutzstaffel (Protection Squadron; SS), and a leading member of the Nazi Party (NSDAP) of Germany. Himmler was one of the most powerful men in Nazi Germany and one of the people most directly responsible for the Holocaust. On Hitler's behalf, Himmler formed the Einsatzgruppen and built extermination camps. As facilitator and overseer of the concentration camps, Himmler directed the killing of some six million Jews, between 200,000 and 500,000 Romani people, and other victims; the total number of civilians killed by the regime is estimated at eleven to fourteen million people. Most of them were Polish and Soviet citizens.) https://en.wikipedia.org/wiki/Heinrich_Himmler