@article{SMJ2_2015_41_1_a3,
     author = {Anoussis, M. S.},
     title = {Shift {{\CYRO}perators}},
     journal = {Serdica Mathematical Journal},
     pages = {35--48},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2015_41_1_a3/}
}