@article{IVM_2013_10_a6,
     author = {A. G. Gein and M. P. Shushpanov},
     title = {Defining relations of a~free modular lattice of rank~$3$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {69--72},
     publisher = {mathdoc},
     number = {10},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2013_10_a6/}
}