@article{CHEB_2017_18_2_a4,
     author = {N. M. Dobrovol'skii and I. N. Balaba and I. Yu. Rebrova and N. N. Dobrovol'skii and E. A. Matveeva},
     title = {On  fractional linear transformations of forms  {A.~Thue--M.\,N.~Dobrovolsky--V.\,D.~Podsypanina}},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {54--97},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2017_18_2_a4/}
}