30/20 GHz and 6/4 GHz Band Transponder Development for Communications Satellite CS-3. - Masayoshi Tanaka; Makoto Nakamura; Teruki Okamoto; Hiroyuki Kumazawa (ICC, 1986)

Progressive coding of color-quantized images. - Hiroyuki Kumazawa; Satoru Tomita (Syst. Comput. Jpn., 1993)