Fraenkel, L. E.; Berger, M. S. A global theory of steady vortex rings in an ideal fluid. (English) Zbl 0282.76014 Acta Math. 132, 13-51 (1974). MSC: 76B47 PDFBibTeX XMLCite \textit{L. E. Fraenkel} and \textit{M. S. Berger}, Acta Math. 132, 13--51 (1974; Zbl 0282.76014) Full Text: DOI
Fraenkel, L. E.; Berger, M. S. A global theory of steady vortex rings in an ideal fluid. (English) Zbl 0267.76012 Bull. Am. Math. Soc. 79, 806-810 (1973). MSC: 76B47 35J60 PDFBibTeX XMLCite \textit{L. E. Fraenkel} and \textit{M. S. Berger}, Bull. Am. Math. Soc. 79, 806--810 (1973; Zbl 0267.76012) Full Text: DOI