@article {7790, title = {Verwilderungen des Blauglockenbaums (Paulownia tomentosa [Thunb.] Steud.) im Rhein-Neckar-Gebiet}, journal = {Floristische Rundbriefe 21}, year = {1987}, month = {1987///}, pages = {23 - 32}, author = {R. Nowack} }