TY  - JOUR 
T1  - Correlations of rock mass classifications applied to ferruginous caves
JO  - REM - International Engineering Journal
A1  - Oliveira, Paula Leal
A1  - Lima, Hernani Mota de
SN  - 2448-167X
UL  - 10.1590/0370-44672019730017
VL  - 73 
Y1  - 2020
PB  - Brasil 
ER  -