I have an old homebrewing book "Brewing Beers Like Those You Buy" by Dave Line (1978?).
IIRC it has several recipes for these "style" beers (Lowenbrau, etc...) and several of the recipes do use the Brewers Caramel.
IIRC it was a UK, Europe centric book w/ a few US beers in the mix.
I'll look...