Well not really. Considering the 50 million figure is complete bullshit. I trust the original source because he's taking into account the opposing side of the Germans. Encouraging others to prove him wrong and saying the figures are up for revision, he also states how he came to those conclusions. I trust his figure much more than the 50 million one as the 50 million one is historically un-reasonable as well as has no mathmatical backing, or historical.
I'm not. The soviet archipelligo was opened in 1991 during the collapse. Much of the information we used to come to conclusions about the Soviets was German accounts, which were incredibly bias and down right wrong. The Germans claimed the soviets won through superior numbers and had insufficiant equipment, they won through a lot more than that and had more mosin nagants than they did soldiers, then you have to consider pistols, SVT's PPSH's, tanks, plane's, Maxim guns, flag-bearers, political officers, sailors and so on.
The book I'm referencing was published in 2011. The other one which gave 50 million was published in 1998. I can determine from those dates which one would have had more access to the soviet archipelligo and which one had more properly evaluated it.