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Yield Performance of Corn under Heat Stress: A Comparison of Hybrid and Open-Pollinated Seeds during a Period of Technological Transformation, 1933-1955 智库出版物
2020
作者:  Keith Meyers;  Paul Rhode
Adobe PDF(757Kb)  |  收藏  |  浏览/下载：1/0  |  提交时间：2022/10/09
Paralyzed by Panic: Measuring the Effect of School Closures during the 1916 Polio Pandemic on Educational Attainment 智库出版物
2017
作者:  Keith Meyers;  Melissa A. Thomasson
Adobe PDF(343Kb)  |  收藏  |  浏览/下载：3/0  |  提交时间：2022/10/09