@misc
{TN_libero_mab2,
author = {
Boruch, Robert F.
},
title = {
The future of controlled randomized experiments: A briefing
},
publisher = {SAGE Publications},
isbn = {0886-1633},
keywords = {
General Social Sciences
},
year = {1994},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}