@article{GDZPPN002356031,
title = {A dual proof of the upper bound conjecture for convex polytopes.},
journal = {Mathematica Scandinavica},
volume = {47},
year = {1980},
pages = {95-102},
zbl = {0437.52001},
url = {http://dml.mathdoc.fr/item/GDZPPN002356031}
}
Bondesen, Aage; Bronsted, Arne. A dual proof of the upper bound conjecture for convex polytopes.. Mathematica Scandinavica, Tome 47 (1980) pp. 95-102. http://gdmltest.u-ga.fr/item/GDZPPN002356031/