@article{王馥棠:80, author = {王馥棠,王石立}, title = {40年来我国粮食产量历史演变特征的初步分析}, publisher = {中国农业科学}, year = {1990}, journal = {中国农业科学}, volume = {23}, number = {04}, eid = {80}, numpages = {0}, pages = {80}, keywords = {历史演变;频数分布;波动周期 }, url = {https://www.chinaagrisci.com/CN/abstract/article_11610.shtml}, doi = {10.3864/j.issn.0578-1752.1990-23-04-80-87} }