[Wiking]

Normally I like Tank Encyclopedia but referring to Grossdeutschland as an "SS Panzerdivision" is a heck of a weird mistake to make for an otherwise fairly well researched site.

I also concur that it makes no sense why these would be assigned to ATG units, unless we're talking late 1944 where everything that could drive was being converted to either anti-tank or anti-aircraft defense.