TY - JOUR AU - S. G. Leiko TI - Isoperimetric problems for rotational functionals of the first and second orders in (pseudo)Riemannian manifolds JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2005 SP - 49 EP - 55 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2005_5_a4/ LA - ru ID - IVM_2005_5_a4 ER -