Lexikon, like Axis History Factbook, isn't always accurate. I can throw in another source, Bender's Panzertruppe book, which may not be any more accurate but he says Stumme was in command until 20 July. Someone may have the HPA commander assignments for the Corps or either officer's HPA card from NARA- that might shed additional light. Bradley may or may not be more accurate than any of the other sources, but of course it hasn't been published as far as Stumme- and may never be. Wish I could give you more.
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