Santos, R. C., et al. “COMPARISON BETWEEN SYSTEMS ENVIRONMENTAL ASSESSMENT IN SHEDS OF LAYING HENS IN THE REGION OF DOURADOS - MS”. Revista Brasileira De Engenharia De Biossistemas, vol. 8, no. 2, Dec. 2014, pp. 183-90, doi:10.18011/bioeng2014v8n2p183-190.