I'd like to read some textbooks which introduce the German way of aspect construction. I can't read German literature so far, so those written in English will be preferred. Would anyone offer any recommendation on this?
I have a book by Comrie on aspect, but interestingly it treats aspect construction of various languages except that of German, probably because the German way of aspect construction is on the whole more lexical than grammatical. Still, there are grammatical devices for aspect construction in individual cases. So I am looking for some texts on this topic, specifically focused on the German language.