@conference{woodward1968the, title = {The Scanning Electron Microscope-A New Tool in Disc-Recording Research}, author = {Woodward, J. G. and Coutts, M. D. and Levin, E. R.}, booktitle = {Audio Engineering Society Convention 34}, month = {Apr}, year = {1968}, url = {https://www.aes.org/e-lib/browse.cfm?elib=1441} }