Previous Article Next Article Table of Contents International Journal of Coal Geology, Vol.190, 1-2, 2018 DOI10.1016/j.coal.2018.03.014 Export Citation Proceedings of the 33rd Annual TSOP Meeting, held jointly with AASP and ICCP INTRODUCTION Gentzis T, O'Keefe J, Demchuk T, Curiale J Please enable JavaScript to view the comments powered by Disqus.