@article{TMF_1990_83_2_a4,
     author = {A. D. Popov},
     title = {Vortices, strings, and pseudoinstantons},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {207--221},
     publisher = {mathdoc},
     volume = {83},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1990_83_2_a4/}
}