@article{10_21136_CMJ_1977_101473,
     author = {Frunz\u{a}, \c{S}tefan},
     title = {A characterization for the spectral capacity of a finite system of operators},
     journal = {Czechoslovak Mathematical Journal},
     pages = {356--362},
     year = {1977},
     volume = {27},
     number = {3},
     doi = {10.21136/CMJ.1977.101473},
     mrnumber = {0440386},
     zbl = {0389.47017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1977.101473/}
}