@misc{1153851, author = {P Gilbert}, title = {An investigation of the protection of dwellings from external noise through facade walls:}, year = {1972}, month = {1972-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.710-2}, language = {en}, }