@article{TMF_1981_46_3_a3,
     author = {I. S. Tsirova and Yu. M. Shirokov},
     title = {Quantum delta-like potential acting in the $P$~state},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {310--315},
     publisher = {mathdoc},
     volume = {46},
     number = {3},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1981_46_3_a3/}
}