This (https://arxiv.org/pdf/1305.4105) is super interesting not only for membrane measurements but also generally for relevant length scales in BLS (frequency/wavevector scaling even if not explicitly implied). Pure thermodynamic description. Takes a few reads to understand/appreciate and helps to have thermodynamics/statistical mechanics textbook on hand (I had Pathria’s). Several (empirical) assumptions more than questionable, but conclusion, at least qualitatively, make sense and I think very nice read all in all.