1. Crustal structure of the Arctic regions from the Lg phase Oliver, J. E. (Jack Ertle), 1923-2011; Ewing, W. Maurice (William Maurice), 1906-1974; Press, Frank, 1924- 1954 Reports
3. Performance of resonant seismometers Donn, William L; Ewing, W. Maurice (William Maurice), 1906-1974; Press, Frank, 1924- 1954 Reports
4. Seismic model study of refractions from a layer of finite thickness Press, Frank, 1924-; Oliver, J. E. (Jack Ertle), 1923-2011; Ewing, W. Maurice (William Maurice), 1906-1974; Worzel, J. Lamar (John Lamar), 1919-2008 1954 Reports