@article{DAN_1992_326_3_a0,
     author = {K. Kh. Boimatov and A. Sharifov},
     title = {Coercive properties of nonlinear {Schr\"odinger} and {Dirac} operators},
     journal = {Doklady Akademii Nauk},
     pages = {393--398},
     publisher = {mathdoc},
     volume = {326},
     number = {3},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_326_3_a0/}
}