Obscure Fw 190D claims on the Eastern front
 

Hello,
I am looking for information on claims submitted by Fw 190D-9 units against the VVS. I have found data on JG 26, JG 51 and JG 301, but have struggled to find anything about the following units:
IV./JG 3
Stab JG 4
JG 6

Gerhard Michalski of Stab JG 4 seems to have scored 1 victory in the East while flying a "Dora" and Günther Schwanecke scored 2, but that is the sum of my knowledge about the use of the D-9 by these units.