EMP (L'Edition Musicale Perforée) & Piano roll firms of France -- by Lorraine Aressy
History of EMP - L'Edition Musicale Perforée -- by Lorraine Aressy (020130 MMDigest)
Article by l'EMP of 10 February 1920 in the trade publication "Musique et Instruments" -- translation and comments by Robbie Rhodes
30 January 2002