@article{VSGTU_2005_34_a8,
     author = {L. I. Fridman and K. S. Morgachev},
     title = {{\CYRR}{\cyre}{\cyrsh}{\cyre}{\cyrn}{\cyri}{\cyre} {\cyrs}{\cyrt}{\cyra}{\cyrc}{\cyri}{\cyro}{\cyrn}{\cyra}{\cyrr}{\cyrn}{\cyro}{\cyrishrt} {\cyrd}{\cyri}{\cyrn}{\cyra}{\cyrm}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrishrt} {\cyrz}{\cyra}{\cyrd}{\cyra}{\cyrch}{\cyri} {\cyrd}{\cyrl}{\cyrya} {\cyrk}{\cyro}{\cyrl}{\cyrsftsn}{\cyrc}{\cyre}{\cyrv}{\cyro}{\cyrishrt} {\cyrp}{\cyrl}{\cyra}{\cyrs}{\cyrt}{\cyri}{\cyrn}{\cyrery} {\cyrv} {\cyrr}{\cyra}{\cyrm}{\cyrk}{\cyra}{\cyrh} {\cyrm}{\cyro}{\cyrd}{\cyre}{\cyrl}{\cyri} {{\CYRT}{\cyri}{\cyrm}{\cyro}{\cyrsh}{\cyre}{\cyrn}{\cyrk}{\cyro}}},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {68--71},
     publisher = {mathdoc},
     number = {34},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2005_34_a8/}
}