3 ms·
The article cites another article which cites https://www.sciencedirect.com/science/article/abs/pii/S0960148112000857 https://www.sciencedirect.com/science/arti
by wenebego 3y ago
The article cites another article which cites https://www.sciencedirect.com/science/article/abs/pii/S0960148112000857 https://www.sciencedirect.com/science/article/abs/pii/S09601... for the coal figure