@misc{calteches213,
         journal = {Engineering and Science},
           month = {December},
          volume = {4},
         address = {Pasadena, CA},
          editor = {Hugh F. Colvin},
           title = {Engineering and Science, Volume 4:2, December 1940},
          number = {2},
       publisher = {California Institute of Technology},
            year = {1940},
             url = {https://resolver.caltech.edu/CaltechES:4.2.0}
}