@misc{1166906, author = {R L Bowen}, title = {Development of a silica-resin direct filling material::progress report}, 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.6333}, language = {en}, }