@article{MZM_2019_105_4_a0,
     author = {S. Albeverio and A. K. Motovilov},
     title = {Solvability of the {Operator} {Riccati} {Equation} in the {Feshbach} {Case}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {483--506},
     publisher = {mathdoc},
     volume = {105},
     number = {4},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2019_105_4_a0/}
}