@article{IM2_1989_32_2_a1,
     author = {B. A. Dubrovin and S. M. Natanzon},
     title = {Real theta-function solutions of the {Kadomtsev{\textendash}Petviashvili} equation},
     journal = {Izvestiya. Mathematics},
     pages = {269--288},
     year = {1989},
     volume = {32},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_32_2_a1/}
}