分面浏览：作者 |
| 当前检索式 | ((ALL：David Mann)) |
| 限定条件 | ((来源机构：Mathematica Policy Research (United States)) AND (发布日期：2019)) |
| David R. Mann 3 | Anna Hill 1 | David C. Stapleton 1 |
| David Mann 1 | Hande Inanc 1 | Purvi H. Sevak 1 |
| Yonatan Ben-Shalom 1 | and David R. Mann 1 | and John O’Neill 1 |
