BibTex format
@article{PRETZEL:1980:10.1016/0012-365X(80)90100-4,
author = {PRETZEL, O},
doi = {10.1016/0012-365X(80)90100-4},
journal = {DISCRETE MATHEMATICS},
pages = {59--68},
title = {A CONSTRUCTION FOR PARTIALLY ORDERED SETS},
url = {http://dx.doi.org/10.1016/0012-365X(80)90100-4},
volume = {32},
year = {1980}
}