Deletion of DB Bpmbdzf

Comment: to Intercity_(Deutsche_Bahn)#Coaching_stock. The Bpmbdzf gets mentions in https://books.google.de/books?id=gUNPAAAAMAAJ&q=Bpmbdzf&dq=Bpmbdzf&hl=de&sa=X&ved=0ahUKEwjwooHM1eDgAhUJNBQKHfuYCxcQ6AEINjAC Jahrbuch des Bahnwesens (Band 49) and https://books.google.de/books?id=VP8pAQAAIAAJ&q=Bpmbdzf&dq=Bpmbdzf&hl=de&sa=X&ved=0ahUKEwjwooHM1eDgAhUJNBQKHfuYCxcQ6AEIMTAB Lok-Magazin, but the snippet previews make me think that it isn't significant/in-depth coverage. The Bpmbdzf article right now is only sourced to wagonweb.cz, which doesn't looks like a  to me, so i'd oppose merging
Stance: merge
Cited policy: Wikipedia:Reliable sources (WP:RS)