@article{TMF_1981_49_1_a6, author = {Yu. G. Pavlenko}, title = {Covariant perturbation theory in classical electrodynamics}, journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika}, pages = {92--101}, publisher = {mathdoc}, volume = {49}, number = {1}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TMF_1981_49_1_a6/} }