@article{01460296,
title = {Fixing and hindering systems in combinatorial geometry.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {40},
year = {1999},
pages = {551-563},
zbl = {0962.52001},
language = {en},
url = {http://dml.mathdoc.fr/item/01460296}
}
Boltyanski, V.; Martini, H. Fixing and hindering systems in combinatorial geometry.. Beiträge zur Algebra und Geometrie, Tome 40 (1999) pp. 551-563. http://gdmltest.u-ga.fr/item/01460296/