Bae, B. I., Choi, Y. C., Ckoi, C. S. and Choi, H. K. (2010). “Shear strength reduction
                           ratio of reinforced concrete shear walls with openings.” Journal of the Korea Concrete
                           Institute, Vol. 22, No. 4, pp. 451-460 (in Korean).10.4334/JKCI.2010.22.4.451Bae,
                           B. I., Choi, Y. C., Ckoi, C. S. and Choi, H. K. (2010). “Shear strength reduction
                           ratio of reinforced concrete shear walls with openings.” Journal of the Korea Concrete
                           Institute, Vol. 22, No. 4, pp. 451-460 (in Korean).
