@book
{TN_libero_mab2,
author = {
Haffner, Karl
},
title = {
Das Königsläufergambit
},
publisher = {Kagan},
year = {[ca. 1918]},
booktitle = {Das angenommene Königsgambit / Carl Schlechter ; 5},
address = {
Berlin
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}