@misc
{TN_libero_mab2,
author = {
van Beek, Peter
},
title = {
Temporal query processing with indefinite information
},
publisher = {Elsevier BV},
isbn = {0933-3657},
keywords = {
Artificial Intelligence
,
Medicine (miscellaneous)
},
year = {1991},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}