@article{SM_2005_196_9_a4,
     author = {P. V. Tumarkin and A. A. Felikson},
     title = {Reflection subgroups of {Euclidean} reflection groups},
     journal = {Sbornik. Mathematics},
     pages = {1349--1369},
     year = {2005},
     volume = {196},
     number = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2005_196_9_a4/}
}