@book
{TN_libero_mab2,
author = {
Strecker, Karl
},
title = {
Die Ottonenzeit
},
publisher = {Hiersemann},
year = {19XX-},
booktitle = {Monumenta Germaniae historica ; Poetae Latini Medii Aevi ; .},
address = {
Leipzig
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}