@article{DAN_1997_352_4_a0,
     author = {K. Kh. Boimatov and K. Seddighi},
     title = {Some spectral properties of ordinary differential operators generated by noncoercive forms},
     journal = {Doklady Akademii Nauk},
     pages = {439--442},
     publisher = {mathdoc},
     volume = {352},
     number = {4},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1997_352_4_a0/}
}