 |
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| Umkehr inversion technique; inversion technique; Umkehr method; Umkehr technique | |||
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technique Umkehr : 5 phrases in 1 subject |
| Environment | 5 |
|
| |||
| Umkehr inversion technique; inversion technique; Umkehr method; Umkehr technique | |||
|
technique Umkehr : 5 phrases in 1 subject |
| Environment | 5 |