TY  - BOOK
AU  - Yagel'Skii,A.N.
TI  - Heat-exchange calculations for the ventilation of dead-end galleries in deep coal mines
U1  - 697.92 
PY  - 1964///
CY  - Jerusalem
PB  - Israel Program for Scientific Translation
KW  - VENTILACION
KW  - MINAS
ER  -