@article{DAN_1986_290_4_a8,
     author = {V. S. Mikhalevich and N. N. Redkovskii},
     title = {A numerical minimization method on a set of positive-definite matrices},
     journal = {Doklady Akademii Nauk},
     pages = {809--812},
     publisher = {mathdoc},
     volume = {290},
     number = {4},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_290_4_a8/}
}