TY  - RPRT
TI  - Optical properties of pseudovitrinite; implications for its origin
AU  - Maria Mastalerz
AU  - A. Drobniak
PY  - 2005
DO  - 10.1016/j.coal.2005.03.019
UR  - https://pubs.usgs.gov/publication/70029559
ID  - 70029559
ER  -