Doboku Kenkyūjo (Japan). Damu Kōzōbutsu Chīmu

• Firu damu no gaibu henkei keisoku no jūyō sokuten no sentei hōhō no teian
• Kōzui chōsetsu senʼyō (ryūsuikei) damu no kūdōbu kibo ni kansuru kōzō kaiseki