TY - JOUR AU - Johnson, B. Carol AU - Litorja, Maritoni AU - Fowler, Joel B. AU - Shirley, Eric AU - Butler, James AU - Barnes, Robert C2 - Applied Optics DA - 2013-11-13 00:11:00 LA - en PB - Applied Optics PY - 2013 TI - Results of aperture area comparisons for exo-atmospheric total solar irradiance measurements UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=913537 ER -