@misc{1193146, author = {Herbert L Whittemore and Ambrose H Stang and Cyrus C Fishburn}, title = {Structural properties of a wall construction of "knap concrete wall units" sponsored by Knap America Inc.:}, year = {1940}, month = {1940-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.BMS.40}, language = {en}, }