SOURCE:  

#1728-A; PA #26; Collection 3, inventory 80, file 638, leaves 101-104. S.II.2.4.51

 
 
NOTE: information enclosed on Sakharov contacts by Chief of the 2 KGB Directorate (counterintelligence), major general Grigorenko, 2 l., dated 6/8/71. Inscription at the bottom of the letter: "reported to comrade Suslov." Shafarevich mentioned in the context implying one more document that we do not have.