Mičić, I., Z. Rajić, J. Živković, D. Orović, M. Mičić, I. Mičić, and M. Mičić. “OPTIMAL FLOCK STRUCTURE OF PIG FARM PROVIDING MINIMUM COSTS”. Economics of Agriculture, vol. 64, no. 3, Sept. 2017, pp. 1003-18, doi:10.5937/ekoPolj1703003M.