@article{CMUC_1962_3_1_a4,
     author = {Marek, Ivo},
     title = {On some spectral properties of {Radon-Nicolski} operations and their generalizations},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {20--30},
     year = {1962},
     volume = {3},
     number = {1},
     mrnumber = {0144216},
     zbl = {0119.11403},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1962_3_1_a4/}
}