@book
{TN_libero_mab2,
author = {
May, Peter
},
title = {
Lernförderlicher Unterricht
},
publisher = {Lang},
keywords = {
Lernerfolg
,
Grundschulunterricht
},
year = {19XX-},
address = {
Frankfurt am Main
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}