discotecas). William K. Heine presentó una ponencia titulada "A Laser Scanning Phonograph Record Player" en la 57.ª convención de la Audio Engineering Society (AES)
W.; Golden, Mitchell. Reconstruction of Recorded Sound from an Edison Cylinder Using Three-Dimensional Noncontact Optical Surface Metrology. Audio Engineering
International Collectors Series, Mayflower Books, Nueva York, 1980. National Phonograph Company. "El fonógrafo y cómo usarlo", Allen Koenigsberg, Nueva York,