for reference counting

reference are currently

Accessor REFERENCE TO SymbolicVarNodeAccessor

Ua_NodeId DeleteTargetReferences

units [u]. eValueReference [...] reference value. usi [...] Axis REFERENCE TO AXIS

ObjectBase Methods: AddLogPropertyReference GetLogPropertyReference GetLogPropertyReference

in REFERENCE TO AnyNumber

the reference to the element

Path REFERENCE TO STRING

Info REFERENCE TO Symbolic