@misc{1182061,
  author = {W F Lankford and H A Schafft},
  title = {Drafting test methods for photovoltaic systems:},
  year = {1980},
  month = {1980-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.80-2060},
  language = {en},
}