@article{TMF_2018_194_3_a5,
     author = {N. B. Il'in and A. N. Pechen'},
     title = {Critical point in the~problem of maximizing the~transition probability using measurements in an~$n$-level quantum system},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {445--451},
     year = {2018},
     volume = {194},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2018_194_3_a5/}
}