@article{TMF_2005_142_1_a7, author = {A. E. Milovidov and G. S. Sharov}, title = {Closed relativistic strings in geometrically nontrivial spaces}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {72--82}, publisher = {mathdoc}, volume = {142}, number = {1}, year = {2005}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_2005_142_1_a7/} }