TY - RPRT TI - Toroidal bubbles with circulation in ideal hydrodynamics: a variational approach. AU - V P Ruban AU - J Juul Rasmussen PY - 2003 DO - 10.1103/physreve.68.056301 UR - https://pubmed.ncbi.nlm.nih.gov/14682878/ ID - 14682878 ER -