@article{TMF_1991_86_1_a13,
     author = {P. P. Kulish},
     title = {Contraction of quantum algebras and $q$~oscillators},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {157--160},
     publisher = {mathdoc},
     volume = {86},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_86_1_a13/}
}