@article{KJM_2007_30_a21,
     author = {Sonja Man\v{c}evska},
     title = {On orbits for pairs of operators on an infinite-dimensional complex {Hilbert} space},
     journal = {Kragujevac Journal of Mathematics},
     pages = {293 },
     publisher = {mathdoc},
     volume = {30},
     year = {2007},
     zbl = {1222.47006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2007_30_a21/}
}