M. Petrova, G. Yordanova, K. Eneva, R. Nenova, and R. Nedeva, “Effect of testing the influence of Nettle extract supplement included in compound feed for growing pigs on productivity, hematological and biochemical indicators”, BJAH, vol. 63, no. 1, pp. 39–46, Feb. 2026, doi: 10.61308/CSCM1556.