Bending elasticity and thermal fluctuations of lipid membranes. Theoretical and experimental requirements J.F. Faucon, M. D. Mitov, P. Méléard, I. Bivas and P. Bothorel J. Phys. France, 50 17 (1989) 2389-2414 DOI: 10.1051/jphys:0198900500170238900