::::Not at all.  I first came across hinm when doing research for my article on the Soviet Annexation of Western Ukraine. On page 47 Littman wrote: "The Soviet occupation of the Western Ukraine was relatively benign." In his acknowledgment section, he thanks Wiktor Poliszczuk describing his work as "an important monograph." Littman does not have a Ph.D. and his master's degree is not in history but in Holocaust Studies.  This topic is not about the Holocaust.  Littman's book is not published by a university of academic institute but by Black Rose, a left-wing activist press.  There is no standard by which it meets the criteria of a reliable source.