@article{ZNSL_1992_202_a0,
     author = {L. Yu. Kolotilina},
     title = {The sparsity of {Bruhat} decomposition factors of nonsingular matrices},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--17},
     year = {1992},
     volume = {202},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1992_202_a0/}
}