@misc{calteches638, number = {6}, publisher = {California Institute of Technology}, year = {1948}, title = {Engineering and Science, Volume 11:6, June 1948}, editor = {Harry K. Farrar}, address = {Pasadena, CA}, volume = {11}, month = {June}, journal = {Engineering and Science}, url = {https://resolver.caltech.edu/CaltechES:11.6.0} }