Ryosuke HIDAKA「Formatting the Market: The MIDI Data Distribution Industry in Japan in the 1990s」『International Association for the Study of Popular Music XX Biennial Conference』Canberra、Australia、June 2019。
Ryosuke HIDAKA「Comparing formats on the music distribution: MIDI Data and Compressed file in Japan in the 1990s」『International Conference POST-MEDIA ECOLOGIES in Asia』Beijing、China、July 2019。