Critical or tricritical SAd-SA 2 point in a (temperature-molecular length) phase diagram ? F. Hardouin, M.F. Achard, Nguyen Huu Tinh and G. SigaudJ. Physique Lett., 46 3 (1985) 123-128DOI: https://doi.org/10.1051/jphyslet:01985004603012300