| Recurrence | |
| comp., MS | périodicité |
| recurrence | |
| chem. | répétition |
| comp., MS | périodicité |
| hi.energ. | récurrence de Regge |
|
Harris : 26 phrases in 6 subjects |
| Chemistry | 1 |
| Earth sciences | 2 |
| Mathematics | 3 |
| Medical | 16 |
| Natural resourses and wildlife conservation | 1 |
| Ornithology | 3 |