@misc{1167096, author = {A F Robertson and J V Ryan}, title = {Proposed criterion for defining load failure of beams, floors, and roof constructions during fire test:}, year = {1958}, month = {1958-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.6105}, language = {en}, }