@misc{indiciae387c2a9f629b, title = {Using laser micro mass spectrometry with the LAMMA-1000 instrument for monitoring relative elemental concentrations in vitrinite}, author = {J.J. Morelli and D.M. Hercules and P.C. Lyons and C.A. Palmer and J.D. Fletcher}, year = {1988}, doi = {10.1007/bf01236096}, url = {https://pubs.usgs.gov/publication/70014710}, note = {Source identifier: 70014710} }