@article{TMF_1975_25_1_a15,
     author = {V. G. Krechet and V. N. Ponomarev},
     title = {Nonlinearity and torsion},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {141--144},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_25_1_a15/}
}