. 2019 Nov 3;10(1):604–634. doi: 10.1080/21655979.2019.1684607
© 2019 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 12.:
Relationship between MER and CH4% content.