@article{PismaZhETF.53.263, title = {Transition between nonsingular vortices in superfluid $^3He-A$ at zero magnetic field}, author = {Torizuka, K. and Pekola, J. P. and Manninen, A. J. and Volovik, G. E.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {53}, issue = {5}, pages = {263}, year = {1991}, doi = {}, url = {http://jetpletters.ru/ps/0/article_17404.shtml}, }