@misc
{TN_libero_mab2,
author = {
Westrop, Stephen R.
},
title = {
Trilobite Diversity Patterns in an Upper Cambrian Stage
},
publisher = {Paleontological Society},
isbn = {0094-8373},
isbn = {1938-5331},
year = {1988},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}