Non-universal critical behavior at the uniaxial-biaxial nematic phase transition in a lyotropic mixture - Thieghi, Leila Thomazelli; Figueiredo Neto, Antonio Martins; Shibli, Suhaila Maluf; Tolédano, Pierre; Dimitriev, Vladimir (Workshop Iberoamericano de Fluidos Complejos y sys Aplicaciones, 1997)