Hi all. I'm looking for a paper that I've seen referenced in a couple of articles I've been reading. The paper is O. M. Kiselev, Determination of gas-bubble shape in axisymmetric flow of fluid, Zh. Prikl. Mekhan. Tekh. Fiz., No. 3 (1963). The English name of the journal is Journal of Applied Mechanics and Technical Physics. The biggest obstacle to me getting this paper is the fact that the journal didn't begin publication until 1965! More generally, does anyone know of any papers treating bubble shape evolution as a variational problem? All of the papers I've found make assumptions about bubble shape and then worry about the fluid dynamics. I read one paper by Frolov that suggests that Landau and Lifgarbagez tackle this problem in their Fluid Mechanics book, but I can't seem to find the page for this. Thanks.