@book
{TN_libero_mab2,
author = {
Heer, Burkhard
},
title = {
Employment and welfare effects of a two-tier unemployment compensation system
},
publisher = {CESifo},
year = {2000},
booktitle = {Working paper series / CESifo ; Center for Economic Studies ; Ifo Institute ; 297},
address = {
Munich
},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}