Cox, J. H.; Legg, J. W. (1925). «The Klydonograph and Its Application to Surge Investigation». Transactions of the American Institute of Electrical Engineers (Institute of Electrical and Electronics Engineers (IEEE)) XLIV: 857–871. doi:10.1109/t-aiee.1925.5061173. ISSN0096-3860.
Cox, J. H.; Legg, J. W. (1925). «The Klydonograph and Its Application to Surge Investigation». Transactions of the American Institute of Electrical Engineers (Institute of Electrical and Electronics Engineers (IEEE)) XLIV: 857–871. doi:10.1109/t-aiee.1925.5061173. ISSN0096-3860.