Helical twisting in reentrant nematic mixtures with optically active dopants G.S. Chilaya, C. Destrade, Z.M. Elashvili, S.P. Ivchenko, L.N. Lisetski, Nguyen Huu Tinh et K.D. Vinokur J. Physique Lett., 46 2 (1985) 75-78 DOI: 10.1051/jphyslet:0198500460207500