@article{IVM_2000_7_a0,
     author = {A. V. Vinnik and S. G. Leiko},
     title = {Isoperimetric rotational extremals on two-dimensional connected {Lie} groups with invariant {Riemannian} metrics},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--5},
     publisher = {mathdoc},
     number = {7},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2000_7_a0/}
}