NFS-based secure file sharing over multiple administrative domains with minimal administration. - Nariyoshi Yamai; Kou Nakayoshi; Hayato Ishibashi; Kota Abe; Koso Murakami; Toshio Matsuura (Syst. Comput. Jpn., 2002)

New Approach for Configuring Hierarchical Virtual Private Networks Using Proxy Gateways. - Hayato Ishibashi; Kiyohiko Okayama; Nariyoshi Yamai; Kota Abe; Toshio Matsuura (ICOIN, 2003)

An Efficient Management Method of Access Policies for Hierarchical Virtual Private Networks. - Kiyohiko Okayama; Nariyoshi Yamai; Hayato Ishibashi; Kota Abe; Toshio Matsuura (COMSWARE, 2007)

Toward Fault-Tolerant P2P Systems: Constructing a Stable Virtual Peer from Multiple Unstable Peers. - Kota Abe; Tatsuya Ueda; Masanori Shikano; Hayato Ishibashi; Toshio Matsuura (AP2PS, 2009)