@article{VMUMM_1993_4_a0,
     author = {I. A. Rudakov},
     title = {Periodic solution of the nonlinear telegraph equation},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {3--6},
     publisher = {mathdoc},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1993_4_a0/}
}