@article{TMF_1991_87_1_a9,
     author = {V. Yu. Lazur and Yu. Yu. Mashika and R. K. Janev and T. P. Grozdanov},
     title = {Quasicrossing of rydberg terms in the problem of two {Coulomb} centers with strongly differing charges},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {97--109},
     publisher = {mathdoc},
     volume = {87},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1991_87_1_a9/}
}