Statements (4)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:named_entity
|
| gptkbp:bfsParent |
gptkb:Anton_Heyboer
|
| gptkbp:bfsLayer |
8
|
| https://www.w3.org/2000/01/rdf-schema#label |
Heyboer system
|