@Article{2019160, title = {农牧户兼业、规模异质与生产技术效率变化*——基于5省452户细毛羊养殖户的实证研究}, author = {许荣,肖海峰}, journal = {中国农业资源与区划}, volume = {40}, number = {9}, pages = {160}, numpages = {9.0000}, year = {2019}, month = {}, doi = {}, publisher = {《中国农业资源与区划》编辑部} }