@article{10_2140_agt_2010_10_917,
     author = {Dranishnikov, Alexander N},
     title = {The {Lusternik{\textendash}Schnirelmann} category and the fundamental group},
     journal = {Algebraic and Geometric Topology},
     pages = {917--924},
     year = {2010},
     volume = {10},
     number = {2},
     doi = {10.2140/agt.2010.10.917},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2010.10.917/}
}