@book
{TN_libero_mab2,
author = {
},
title = {
Compendium of practical astronomy
2 Earth and solar system
},
publisher = {Springer},
isbn = {3540562737},
isbn = {0387562737},
year = {1994},
address = {
Berlin
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}