@misc{calteches333, number = {6}, year = {1947}, publisher = {California Institute of Technology}, title = {Engineering and Science, Volume 10:6, June 1947}, editor = {Hugh F. Colvin}, address = {Pasadena, CA}, volume = {10}, month = {June}, journal = {Engineering and Science}, url = {https://resolver.caltech.edu/CaltechES:10.6.0} }