@article{DAN_1990_315_1_a12,
     author = {B. I. Birger and A. T. Ismail-zade and B. M. Naimark},
     title = {Thermoconvective stability of the {Earth} in presence of chemical boundary between the upper mantle and the lower mantle},
     journal = {Doklady Akademii Nauk},
     pages = {57--61},
     publisher = {mathdoc},
     volume = {315},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_315_1_a12/}
}