González, E., Jordano, R., López, M.C., Córdoba, M.G. and Medina, L.M. 1998. Occurrence of Lactobacillus spp. and Bacillus licheniformis in margarine with yoghurt. Grasas y Aceites. 49, 1 (Feb. 1998), 38–41. DOI:https://doi.org/10.3989/gya.1998.v49.i1.706.