@article{DAN_1987_295_1_a15,
     author = {I. Sh. Akhatov and R. K. Gazizov and N. H. Ibragimov},
     title = {Quasilocal symmetries of equations of nonlinear heat-conduction},
     journal = {Doklady Akademii Nauk},
     pages = {75--78},
     publisher = {mathdoc},
     volume = {295},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_295_1_a15/}
}