TY  - JOUR
PY  - 1989//
TI  - Is regulation effective? A case study of underground coal mining
JO  - Annals of the New York Academy of Sciences
A1  - Weeks, J. L.
SP  - 189
EP  - 99; discussion 221
VL  - 572
IS  - 
N2  - <p>[Abstract unavailable]</p> <p>Language: en</p> 
LA  - en
SN  - 0077-8923
UR  - http://dx.doi.org/
ID  - ref1
ER  -