I found today this article on air battles over the Volkhov in mid-February 1943. This is a rather uncommon subject (at least from my point of view) but is also very detailled, with the fate of each crew lost by the Soviets.
It is in Russian, but if you don't read Russian, you can use an Internet translation robot: I did it and the text is still udnerstandable.
The link:
http://www.trizna.ru/forum/viewtopic...=26314&start=0
Best regards
Laurent