TY - JOUR AU - TI - Covariate Measurements for Increasing the Precision of Plant Response to O3 and SO2 JF - HortScience DO - 10.21273/hortsci.18.6.896 DA - 1983-12-01 UR - https://www.deepdyve.com/lp/unpaywall/covariate-measurements-for-increasing-the-precision-of-plant-response-LC0cybZRtA DP - DeepDyve ER -