@article{IM2_1996_60_1_a8, author = {N. A. Tyurin}, title = {Necessary and sufficient conditions for a~deformation of {a~B-monopole} into an instanton}, journal = {Izvestiya. Mathematics }, pages = {217--231}, publisher = {mathdoc}, volume = {60}, number = {1}, year = {1996}, language = {en}, url = {http://geodesic.mathdoc.fr/item/IM2_1996_60_1_a8/} }