TY - GEN TI - Engineering and Science, Volume 19:3, December 1955 Y1 - 1955/01/01/ PB - Calfornia Institute of Technology SN - 0013-7812 UR - https://resolver.caltech.edu/CaltechES:19.3.0 CY - Pasadena, CA AV - public ID - calteches40 ER -