Pereira J, Trindade H. Short communication: Impact of the intensity of milk production on ammonia and greenhouse gas emissions in Portuguese cattle farms. Span. j. agric. res. [Internet]. 2015Dec.2 [cited 2024Apr.27];13(4):e06SC05. Available from: https://sjar.revistas.csic.es/index.php/sjar/article/view/8176