@book{ Solr-12866, title = {Coal resources : an appraisal of world coal resources and their future availability}, series = {World energy resources 1985-2020.}, author = {Peters, W.}, editor = {Peters, W.}, editor = {Schilling, Hans-Dieter.}, address = {Guildford, New York}, publisher = {Published for the WEC by IPC Science and Technology Press}, year = {1978}, note = {englisch}, }