[1]
M. E. Yetkin, F. Simsir, M. K. Ozfirat, P. M. Ozfirat, and H. Yenice, “A FUZZY APPROACH TO SELECTING ROOF SUPPORTS IN LONGWALL MINING”,
S AFR J IND ENG
, vol. 27, no. 1, pp. 162–177, May 2016.