MÜFTÜOĞLU, Y. V. Et Al. 1991. Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines. ISRM, 7th, Int. Congress on Rock Mechanics , (Aachen, Germany).

MÜFTÜOĞLU, Y. V., PAŞAMEHMETOĞLU, A. G., & KARPUZ, C., (1991). Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines . ISRM, 7th, Int. Congress on Rock Mechanics, Aachen, Germany

MÜFTÜOĞLU, YADİKAR, AHMET GÜNHAN PAŞAMEHMETOĞLU, And CELAL KARPUZ. "Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines," ISRM, 7th, Int. Congress on Rock Mechanics, Aachen, Germany, 1991

MÜFTÜOĞLU, YADİKAR V. Et Al. "Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines." ISRM, 7th, Int. Congress on Rock Mechanics , Aachen, Germany, 1991

MÜFTÜOĞLU, Y. V. PAŞAMEHMETOĞLU, A. G. And KARPUZ, C. (1991) . "Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines." ISRM, 7th, Int. Congress on Rock Mechanics , Aachen, Germany.

@conferencepaper{conferencepaper, author={YADİKAR VASFİ MÜFTÜOĞLU Et Al. }, title={Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines}, congress name={ISRM, 7th, Int. Congress on Rock Mechanics}, city={Aachen}, country={Germany}, year={1991}}