| Subject | English | Dutch |
| comp., MS | reference group | verwijzingsgroep (A group that is associated with another group so that their properties and the properties of the groups and fields they contain always match. If the properties of one group are changed, the other group is updated automatically) |
| social.sc. | reference group | referentiegroep |
| health., el. | reference group of the population | referentiegroep van de bevolking |
| energ.ind., nucl.phys. | reference group of the population | referentiegroepen kritieke groepen van de bevolking |
| el. | reference group pilot | supergroep |
| el. | reference group pilot | referentiegroep |