Japan. Monbu Kagakushō. Kenkyū Kaihatsukyoku

• Chikyū kankyō enkaku tansa gijutsu tō no kenkyū
• Iwatesan no kazan katsudō ni kansuru kenkyū seika hōkokusho
• Kaiyō nisanka tanso sensā kaihatsu to kansoku kiban kōchiku
• Kōkaizōdo kikō hendō shinario o mochiita daitoshiken no fūsuigai zeijakusei hyōka ni motozuku tekiō ni kansuru kenkyū