@article{VMJ_2012_14_3_a4,
     author = {A. V. Zhuklina},
     title = {Matrices comparable by columns and proportional by columns over lattices},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {45--57},
     year = {2012},
     volume = {14},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2012_14_3_a4/}
}