 |
| |||
| Christian Johann Doppler (1803 — 53, Доплер, австр. физик и математик) | |||
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips