@article{10_21136_CMJ_1989_102350,
     author = {Laursen, Kjeld Bagger and Vrbov\'a, Pavla},
     title = {Some remarks on the surjectivity spectrum of linear operators},
     journal = {Czechoslovak Mathematical Journal},
     pages = {730--739},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {1989},
     doi = {10.21136/CMJ.1989.102350},
     mrnumber = {1018009},
     zbl = {0715.47003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102350/}
}