@article{TMF_2006_149_3_a2,
     author = {V. S. Vladimirov},
     title = {Nonlinear equations for $p$-adic open, closed, and open-closed strings},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {354--367},
     publisher = {mathdoc},
     volume = {149},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2006_149_3_a2/}
}