Nonperfect Secret Sharing Schemes and Matroids. - Kaoru Kurosawa; Koji Okada; Keiichi Sakano; Wakaha Ogata; Shigeo Tsujii (EUROCRYPT, 1993)

Security of the Center in Key Distribution Schemes. - Kaoru Kurosawa; Koji Okada; Keiichi Sakano (ASIACRYPT, 1994)

Multisymbol Majority Vote and Hard Core. - Wakaha Ogata; Keiichi Sakano; Kaoru Kurosawa (Inf. Process. Lett., 1996)