@article{10_2140_agt_2016_16_1799,
     author = {Musin, Oleg},
     title = {Homotopy invariants of covers and {KKM-type} lemmas},
     journal = {Algebraic and Geometric Topology},
     pages = {1799--1812},
     year = {2016},
     volume = {16},
     number = {3},
     doi = {10.2140/agt.2016.16.1799},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.1799/}
}