@article{TDM_2003_7_a3,
     author = {V. P. Elizarov},
     title = {Simplification methods for systems of linear equations over {modules.~I}},
     journal = {Trudy po diskretnoj matematike},
     pages = {56--74},
     publisher = {mathdoc},
     volume = {7},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TDM_2003_7_a3/}
}