N. Sayed and H. Schönfeldt, “The use of linear programming to determine whether breastfed infants can achieve a nutritionally adequate complementary feeding diet: a case study of 6–11-month-old infants from KwaMashu, KwaZulu-Natal, South Africa”, SAJCN, vol. 35, no. 3, pp. 100-107, Aug. 2022.