发文地区与机构
近年国家 / 地区发文量统计
| 国家 / 地区 | 发文量 |
|---|---|
| USA | 44 |
| England | 23 |
| GERMANY (FED REP GER) | 10 |
| Spain | 10 |
| France | 6 |
| Italy | 6 |
| Argentina | 5 |
| CHINA MAINLAND | 5 |
| Canada | 5 |
| Netherlands | 4 |
近年机构发文量统计
| 机构 | 发文量 |
|---|---|
| UNIVERSITY OF CAMBRIDGE | 9 |
| UNIVERSITY OF CALIFORNIA SYSTEM | 6 |
| 28 PEVENSEY PK RD | 5 |
| CONSEJO NACIONAL DE INVESTIGACIONES CIE... | 5 |
| DURHAM UNIVERSITY | 5 |
| HM NAUT ALMANAC OFF | 5 |
| CHINESE ACADEMY OF SCIENCES | 4 |
| DARTMOUTH COLLEGE | 4 |
| HARVARD UNIVERSITY | 4 |
| POLISH ACADEMY OF SCIENCES | 4 |