@misc{1180071, author = {Harold Berger and Leonard Mordfin}, title = {Technical activities 1981 Office of Nondestructive Evaluation:}, year = {1981}, month = {1981-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.82-2449}, language = {en}, }