1. Research on the Definition of Economic Limits for the Development of Unconventional Natural Gas under New Situations. (29th April 2020) Authors: Li, Zuxin; Liu, Jianye; Luo, Dongkun; Yin, Xiuling; Sun, Dufen Other Names: Ortobelli Sergio Academic Editor. Journal: Mathematical problems in engineering Issue: Volume 2020(2020) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗