Separation stability in binary mixtures with negative Soret numbers B. Šeta, E. Lapeira, D. Dubert, F. Gavalda, M.M. Bou-Ali and X. Ruiz MATEC Web Conf., 286 (2019) 07015 Published online: 14 August 2019 DOI: 10.1051/matecconf/201928607015