L. SENILA, M. MICLEAN, O. CADAR, M. SENILA, M. KOVACS, and M.-A. RESZ (HOAGHIA), “VALIDATION OF A METHOD FOR DETERMINATION OF FREE GLYCEROL IN BIODIESEL”, Studia UBB Chemia, vol. 61, no. 3, pp. 345–353, Sep. 2016.