@misc{calteches131,
         journal = {Engineering and Science},
           month = {June},
          volume = {14},
         address = {Pasadena, CA},
          editor = {Edward Hutchings, Jr.},
           title = {Engineering and Science, Volume 14:9, June 1951},
          number = {9},
            year = {1951},
       publisher = {California Institute of Technology},
             url = {https://resolver.caltech.edu/CaltechES:14.9.0}
}