Density inversion in the binary liquid system cyclohexane + aceto nitrile. Effects of doping and simplified models of the phenomena B. Ravi Gopal, VC. Vani, S. Guha et E.S.R. Gopal J. Phys. III France, 1 4 (1991) 639-650 DOI: 10.1051/jp3:1991145