@article{RM_1998_53_5_a7,
     author = {O. N. Ageev},
     title = {Dynamical systems with arbitrary spectrum multiplicity function},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1079--1081},
     publisher = {mathdoc},
     volume = {53},
     number = {5},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1998_53_5_a7/}
}