@article{VMUMM_2008_4_a4,
     author = {V. M. Fedorov},
     title = {Factor normal wedges of semi-ordered spaces},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {26--36},
     publisher = {mathdoc},
     number = {4},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2008_4_a4/}
}