@article{TMF_2013_174_2_a6,
     author = {V. M. Zhuravlev},
     title = {Multidimensional nonlinear wave equations with multivalued solutions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {272--284},
     year = {2013},
     volume = {174},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2013_174_2_a6/}
}