| Identifier : | 1200 |
| Title : | H. Poincaré à Julius Petersen |
| Author surname : | Poincaré |
| Author first name : | Henri |
| Recipient surname : | Petersen |
| Recipient first name : | Julius |
| Sent from : | Paris |
| Sent to : | Copenhagen |
| Date YYYY-MM-DD : | 1883-03-15 |
| Language : | fr |
| Incipit : | Le groupe dont vous me parlez |
| Source : | Royal Library of Copenhagen |
| Pages : | 2 |