@book{gledocs_11858_11050,
author = {Waidmann, Jürgen},
title = {Kometen auf Kollisionskurs},
year = {2010},
publisher = {Tectum},

note = { \url {http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11050}},
note = { \url {http://dx.doi.org/10.23689/fidgeo-5794}},
}