@misc{1174691, author = {Jin B Fang}, title = {Calculations of maximum allowable heat losses for various shallow trench heat distribution systems:}, year = {1987}, month = {1987-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.87-3617}, language = {en}, }