@article{PismaZhETF.25.218, title = {Symmetry of instanton solutions in gauge theories}, author = {Leznov, A. N.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {25}, issue = {4}, pages = {218}, year = {1977}, doi = {}, url = {http://jetpletters.ru/ps/0/article_21117.shtml}, }