@article{PismaZhETF.78.108, title = {Mach cones and magnetic forces in Saturn's rings}, author = {Hartquist, T. W. and Havnes, O.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {78}, issue = {2}, pages = {108}, year = {2003}, doi = {}, url = {http://jetpletters.ru/ps/0/article_518.shtml}, }