TY - RPRT TI - NREL Pyrheliometer Comparisons: September 23-October 4, 2019 (NPC-2019) AU - Reda, Ibrahim AU - Andreas, Afshin AU - Habte, Aron AU - Gotseff, Peter AU - Kutchenreiter, Mark AU - Stoddard, Marta PY - 2020 DO - 10.2172/1571755 UR - https://www.osti.gov/biblio/1571755 ID - 1571755 ER -