@misc
{TN_libero_mab2,
author = {
Koszyk, Kurt
},
title = {
Die Konkurrenzlage Auf Dem Deutschen Zeitungsmarkt
},
publisher = {SAGE Publications},
isbn = {0016-5492},
keywords = {
General Earth and Planetary Sciences
,
General Environmental Science
},
year = {1963},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}