@article{10_2140_agt_2012_12_1373,
     author = {Rezk, Charles},
     title = {Modular isogeny complexes},
     journal = {Algebraic and Geometric Topology},
     pages = {1373--1403},
     year = {2012},
     volume = {12},
     number = {3},
     doi = {10.2140/agt.2012.12.1373},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2012.12.1373/}
}