author = { Erd, Klaus },

title = { Pollen-analytical classification of the middle pleistocene in the German Democratic Republic },

publisher = {Elsevier BV},

isbn = {0031-0182},

keywords = { Paleontology , Earth-Surface Processes , Ecology, Evolution, Behavior and Systematics , Oceanography },

year = {1970},

url = { http://slubdd.de/katalog?TN_libero_mab2 }