as I thought I had previously pointed out G. Nipe is using original German materials copied down during and after the battle. May I suggest a copy of his work unless you can read/understand Deutsch for the volume I mentioned; Nipes book should be read just to view the German portion of things and see wher the southern salient was fought because it is very confusing attack, retreat, and for both sides. Warning the book is repitive but you can get through it easily enough ...... also Tigers in Combat 2 for the SS Panzer Komapnies, all from German sources