MinJeong Kim, Richard D. Braatz, Jeong Tai Kim, ChangKyoo Yoo^*, Indoor Air Quality Control for Improving Passenger Health in Subway Platforms Using an Outdoor Air Quality Dependent Ventilation System, Building and Environment (ISSN: 0360-1323, SCIE, Top 5% journal: Civil Eng.), Elsevier, 92(7), pp.407-417 (2015.10) (Ack: NRF grant- MSIP- 2015R1A2A2A11001120)