Global S&T Development Trend Analysis Platform of Resources and Environment
分面浏览：作者 |
| 当前检索式 | ((ALL：Welker, Jeffrey M.)) |
| 限定条件 | ((作者：Beard, Karen H.) AND (学科/领域：资源环境)) |
| Beard, Karen H. 2 | Kelsey, Katharine C. 2 | Leffler, A. Joshua 2 |
| Welker, Jeffrey M. 2 | Choi, Ryan T. 1 | Schmutz, Joel A. 1 |
