@article{DAN_1993_332_1_a4,
     author = {F. G. Maksudov and B. P. Allahverdiev},
     title = {On extensions of symmetric {Schr\"odinger} operators with matrix potentials},
     journal = {Doklady Akademii Nauk},
     pages = {18--20},
     publisher = {mathdoc},
     volume = {332},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_332_1_a4/}
}