@misc{calteches184,
         address = {Pasadena, CA},
          editor = {Edward Hutchings, Jr.},
           title = {Engineering and Science, Volume 21:7, April 1958},
          number = {7},
            year = {1958},
       publisher = {California Institute of Technology},
         journal = {Engineering and Science},
           month = {April},
          volume = {21},
             url = {https://resolver.caltech.edu/CaltechES:21.7.0}
}