@article{DVMG_2001_2_2_a5,
     author = {M. O. Avdeeva},
     title = {About the {Vahlen} theorem analog for three-dimensional lattices},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {69--73},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2001_2_2_a5/}
}