WASET
Sasajima, M. , Watanabe, M. , Yamaguchi, T. , Kurosawa, Y. , Koike, Y.. "Acoustic Analysis with Consideration of Damping Effects of Air Viscosity in Sound Pathway". World Academy of Science, Engineering and Technology, Open Science Index 78, International Journal of Mechanical and Mechatronics Engineering (2013), 7(6), 1327 - 1332.