@misc{1170371, author = {Lionel A Issen}, title = {Fire safety study of air ducts and fire dampers effect of hangar spacing, hangar size, and wall thickness::first progress report}, year = {1971}, month = {1971-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.10482}, language = {en}, }