Solid-Liquid Equilibria of Dibenzothiophene and Dibenzothiophene Sulfone in Organic Solvents Ramírez-Verduzco, L.F.; Rojas-Aguilar, A.; De los Reyes, J.A.; Muñoz-Arroyo, J.A.; Murrieta-Guevara, F.; Journal of Chemical & Engineering Data 2007, 52, 2212-2219