Vlastimil Pták. Thickness of families of sets and a minimax lemma. Discrete Mathematics, 108(1-3):175-181, 1992. [doi]
@article{Ptak92,
title = {Thickness of families of sets and a minimax lemma},
author = {Vlastimil Pták},
year = {1992},
doi = {10.1016/0012-365X(92)90672-3},
url = {http://dx.doi.org/10.1016/0012-365X(92)90672-3},
researchr = {https://researchr.org/publication/Ptak92},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {108},
number = {1-3},
pages = {175-181},
}