@article{MZM_1993_53_3_a18,
     author = {V. A. Lyubishkin},
     title = {A~regularized trace of a~two-dimensional oscillator},
     journal = {Matemati\v{c}eskie zametki},
     pages = {156--158},
     publisher = {mathdoc},
     volume = {53},
     number = {3},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_53_3_a18/}
}