Richard Ehrenborg, Harold Fox. Inequalities for cd-Indices of Joins and Products of Polytopes. Combinatorica, 23(3):427-452, 2003. [doi]
@article{EhrenborgF03,
title = {Inequalities for cd-Indices of Joins and Products of Polytopes},
author = {Richard Ehrenborg and Harold Fox},
year = {2003},
url = {http://www.springerlink.com/index/10.1007/s00493-003-0026-z},
researchr = {https://researchr.org/publication/EhrenborgF03},
cites = {0},
citedby = {0},
journal = {Combinatorica},
volume = {23},
number = {3},
pages = {427-452},
}