Changes
/* Sections of mapping file */
Each such section consists of multiple sections describing the mapping of [[#Section_.3CNameOfXmlElement.3E|{{UBIK}} MetaClasses to XML elements]], labeled similar to the name of the related XML element.
These class related mapping sections (also called '''ClassMapping''') consist of sections for defining
* possible key properties, labeled [['''<IdentifiersIdentifier>''']]
* general properties, labeled '''<Property>'''
* references for objects, labeled '''<Reference>'''
