Krupanek , Janusz, Beata Michaliszyn-Gabryś, and Manuel Moreno. (2021) 2022. “ENVIRONMENTAL PERFORMANCE OF PIG MEAT PRODUCTS AND IMPROVEMENT OPPORTUNITIES. CASE STUDY FROM SPAIN”. Economics and Environment 79 (4). https://doi.org/10.34659/https://doi.org/10.34659/2021/4/36.