@article{MZM_2006_79_2_a14,
     author = {A. M. Bikchentaev},
     title = {Projection-Convex {Combinations} in $C^*${-Algebras} and the {Invariant} {Subspace} {Problem,~I}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {311--315},
     publisher = {mathdoc},
     volume = {79},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2006_79_2_a14/}
}