Gilton, Marian J. R. (2016). "Whence the eigenstate–eigenvalue link?". Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics. 55: 92–100. Bibcode:2016SHPMP..55...92G. doi:10.1016/j.shpsb.2016.08.005.
Gilton, Marian J. R. (2016). "Whence the eigenstate–eigenvalue link?". Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics. 55: 92–100. Bibcode:2016SHPMP..55...92G. doi:10.1016/j.shpsb.2016.08.005.