TY - JOUR TI - Effects of Infill Walls on Free Vibration Characteristics of Multi-Storey Frames Using Dynamic Stiffness Method AU - BOZYİGİT, B. AU - YESİLCE, Y. JO - Sigma Journal of Engineering and Natural Sciences PY - 2019 VL - 37 SP - 885 EP - 902 DO - ER -