@article{10_2140_agt_2014_14_3089,
     author = {Ciobotaru, Corina},
     title = {The flat closing problem for buildings},
     journal = {Algebraic and Geometric Topology},
     pages = {3089--3096},
     year = {2014},
     volume = {14},
     number = {5},
     doi = {10.2140/agt.2014.14.3089},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2014.14.3089/}
}