@article{JRAM_1988__384_152997,
     author = {C.J. Amick and R.E.L. Turner},
     title = {A global branch of steady vortex rings.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {1--23},
     publisher = {mathdoc},
     volume = {384},
     year = {1988},
     zbl = {0628.76032},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1988__384_152997/}
}