Global S&T Development Trend Analysis Platform of Resources and Environment
分面浏览：作者 |
| 当前检索式 | ((ALL：Proceedings of the National Academy of Science)) |
| 限定条件 | ((发表日期：2020) AND (作者：Enquye W. Negash)) |
| Enquye W. Negash 2 | Jonathan G. Wynn 2 | Matt Sponheimer 2 |
| René Bobe 2 | Zeresenay Alemseged 2 | Frederick E. Grine 1 |
| Frederick Grine 1 |
