@article{VMJ_2014_16_2_a8,
     author = {A. G. Chshiev},
     title = {On inversion of semigroups of operators},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {79--89},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2014_16_2_a8/}
}