@misc{1156691, author = {Ernest K. Smith and Donald H Menzel}, title = {Conference on Non-linear Processes in the Ionosphere, December 16-17, 1963. Volume 4:}, year = {1964}, month = {1964-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.211-4}, language = {en}, }