d_ref_tree
CODE | DESCRIPTION | FROM_YEAR | TO_YEAR |
---|---|---|---|
1 | Local / conceptual reference tree | 1984 | |
2 | Absolute reference tree | 1984 | |
3 | Combination of a local and absolute reference tree | 1984 | |
4 | None | 1984 |
d_ref_tree
CODE | DESCRIPTION | FROM_YEAR | TO_YEAR |
---|---|---|---|
1 | Local / conceptual reference tree | 1984 | |
2 | Absolute reference tree | 1984 | |
3 | Combination of a local and absolute reference tree | 1984 | |
4 | None | 1984 |