About MATSUMURA HAJIME
About NTT 未来ねっと研
About YAMADA SHIGEKI
About 学術情報セ
About KUBOTA MINORU
About NTT 未来ねっと研
About 電子情報通信学会論文誌 B
About system reliability
About Telephone,data communication and exchange in general
About Communication network
About 制御系
About 通話路
About 通信ネットワーク
About 有効性