@misc{1157986, author = {Elmer Streed}, title = {Uncertainty in determining thermal performance of liquid-heating flat-plate solar collectors:}, year = {1981}, month = {1981-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.1140}, language = {en}, }