TY - GEN AU - D E Sawyer AU - H K Kessler AU - H A Schafft C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.80-2027 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - Measurement techniques for solar cells, Annual report September 15, 1977 to December 14, 1978: ER -