Audio-visually aided interactive sandbox: Extensions of a traditional playground. - Isato Kataoka; Katsunori Shimohara; Atsuhito Sekiguchi; Michio Okada; Osamu Katai (ICME, 2001)

Vibracion Cajon: a drumming interface that awakes a shared sense of identity. - Junichi Kanebako; Atsuhito Sekiguchi (Advances in Computer Entertainment Technology, 2008)