@article{ZNSL_2000_264_a2,
     author = {M. I. Belishev},
     title = {On the triangular factorization of isomorphisms},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {33--43},
     publisher = {mathdoc},
     volume = {264},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2000_264_a2/}
}