J. C. Alvarez, C. de S. Lucci, and L. Melotti, “Soyabean protein concentrate as parcial substitute of milk protein in milk replacers for calves”, Braz. J. Vet. Res. Anim. Sci., vol. 36, no. 2, pp. 103–107, Jan. 1999, doi: 10.1590/S1413-95961999000200010.