TY - RPRT TI - Using Spectral Measurements to Characterize Solar Reference Cells on a Two-Axis Tracker AU - Vignola, Frank AU - Peterson, Josh AU - Kessler, Rich AU - Habte, Aron AU - Gotseff, Peter AU - Sengupta, Manajit (ORCID:0000000156224503) AU - Mavromatakis, Fotis PY - 2021 DO - 10.1109/pvsc45281.2020.9300854 UR - https://www.osti.gov/biblio/1769848 ID - 1769848 ER -