引用本文: | 董宁, 赵伟. 基于HP滤波模型苜蓿草进口价格波动分析[J]. 草业科学, 2018, 12(6): 1582-1586. DOI: 10.11829/j.issn.1001-0629.2017-0356 |
Citation: | Ning Dong, Wei Zhao. Analysis of alfalfa import price fluctuation based on an HP filter model[J]. Pratacultural Science, 2018, 12(6): 1582-1586. DOI: 10.11829/j.issn.1001-0629.2017-0356 |