Open Science Research Excellence
Kyung Jin Ryu and  MakhsudaJuraeva and  Sang-Hyun Jeongand Dong Joo Song,  Ventilation Efficiency in the Subway Environment for the Indoor Air Quality.   journal   = {International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2012, vol. 63(3). 549 - 553[viewed 21 May 2019]. Available from: http://waset.org/publications/3116.