 |
| |||
| fifteen-supergroup assembly | |||
| 15-supergroup assembly; 15-supergroup hypergroup | |||
| assemblage de 15 groupes secondaires: 5 phrases in 2 subjects |
| Communications | 3 |
| Power lines | 2 |
|
| |||
| fifteen-supergroup assembly | |||
| 15-supergroup assembly; 15-supergroup hypergroup | |||
| assemblage de 15 groupes secondaires: 5 phrases in 2 subjects |
| Communications | 3 |
| Power lines | 2 |