Access, ActionToMinimizeLosses, AgencyOrganizationReference, AggregationVariables, AggregationVariablesReference, Archive, ArchiveOrganizationReference, ArchiveReference, AssignedVariableReference, AttachmentRegionReference, Attribute, AttributeReference, AuthorizedSource, AuthorizedSourceReference, AuthorizingAgencyReference, BaseLogicalProduct, BaseRecordLayout, BasedOnReference, BudgetDocument, Category, CategoryGroup, CategoryGroupReference, CategoryMap, CategoryMapReference, CategoryReference, CategoryScheme, CategorySchemeReference, CharacteristicReference, Code, CodeList, CodeListGroup, CodeListGroupReference, CodeListReference, CodeListScheme, CodeListSchemeReference, CodeReference, CodedDataAsNumeric, CodedDataAsText, CollectionEvent, CollectionSituation, Comparison, ComparisonReference, ComplianceConceptReference, ComponentReference, ComputationItem, Concept, ConceptGroup, ConceptGroupReference, ConceptMap, ConceptMapReference, ConceptReference, ConceptScheme, ConceptSchemeReference, ConceptualComponent, ConceptualComponentReference, ConceptualVariable, ConceptualVariableGroup, ConceptualVariableGroupReference, ConceptualVariableReference, ConceptualVariableScheme, ConceptualVariableSchemeReference, ConditionalVariableReference, ContactOrganizationReference, ContributorReference, ControlConstruct, ControlConstructGroup, ControlConstructGroupReference, ControlConstructReference, ControlConstructScheme, ControlConstructSchemeReference, CoordinateRegion, CreatorReference, DDIInstance, DDIProfile, DDIProfileReference, DataCollection, DataCollectionMethodology, DataCollectionReference, DataCollectorOrganizationReference, DataRelationship, DataRelationshipReference, DataSet, DateTimeDomainReference, DateTimeRepresentationReference, DefaultAccess, DefaultDateTimeDataTypeReference, DefaultMissingValuesReference, DefaultNumericDataTypeReference, DefaultTextDataTypeReference, DefaultVariableSchemeReference, DefiningCategoryReference, DefiningConceptReference, DependentVariableReference, DepositoryGroupReference, DepositoryObjectReference, DepositoryResourcePackageReference, DepositoryStudyUnitReference, DeviationFromSampleDesign, ElseConstructReference, Embargo, EmbargoReference, EnforcementAgencyOrganizationReference, EvaluatorReference, Exclude, ExcludedGeographicLevelReference, ExcludedLocationValueReference, ExternalAid, ExternalInformation, ExternalInterviewerInstruction, FilterVariableReference, GeneralInstruction, GeneralInstructionReference, GenerationInstruction, GenerationInstructionReference, GeographicLayerBaseReference, GeographicLevel, GeographicLevelReference, GeographicLocation, GeographicLocationGroup, GeographicLocationGroupReference, GeographicLocationReference, GeographicLocationScheme, GeographicLocationSchemeReference, GeographicStructure, GeographicStructureGroup, GeographicStructureGroupReference, GeographicStructureReference, GeographicStructureScheme, GeographicStructureSchemeReference, GeographyStructureVariableReference, GrossFileStructure, GrossRecordStructure, Group, GroupReference, GroupingConceptReference, GroupingUniverseReference, IdentifyingVariableReference, IfThenElse, ImputationReference, InParameter, IndependentVariableReference, Individual, IndividualReference, Instruction, InstructionGroup, InstructionGroupReference, InstructionReference, Instrument, InstrumentGroup, InstrumentGroupReference, InstrumentReference, InstrumentScheme, InstrumentSchemeReference, InterviewerInstructionReference, InterviewerInstructionScheme, InterviewerInstructionSchemeReference, ItemMap, KeyVariableReference, LifecycleEvent, LocalGroupContent, LocalGroupContentReference, LocalHoldingPackage, LocalHoldingPackageReference, LocalObjectReference, LocalResourcePackageContent, LocalResourcePackageContentReference, LocalStudyUnitContent, LocalStudyUnitContentReference, LocationValue, LocationValueReference, LogicalProduct, LogicalProductReference, LogicalRecord, LogicalRecordReference, Loop, LoopVariableReference, ManagedDateTimeRepresentation, ManagedDateTimeRepresentationReference, ManagedMissingValuesRepresentation, ManagedMissingValuesRepresentationReference, ManagedNumericRepresentation, ManagedNumericRepresentationReference, ManagedRepresentation, ManagedRepresentationGroup, ManagedRepresentationGroupReference, ManagedRepresentationReference, ManagedRepresentationScheme, ManagedRepresentationSchemeReference, ManagedScaleRepresentation, ManagedScaleRepresentationReference, ManagedTextRepresentation, ManagedTextRepresentationReference, MeasureDefinition, MeasureDefinitionReference, Methodology, MethodologyReference, MissingValuesDomainReference, MissingValuesReference, MissingValuesReference, ModeOfCollection, NCube, NCubeGroup, NCubeGroupReference, NCubeInstance, NCubeInstance, NCubeInstance, NCubeInstanceReference, NCubeMeasureDefinitionReference, NCubeReference, NCubeScheme, NCubeSchemeReference, NumericDomainReference, NumericRepresentationReference, Organization, OrganizationGroup, OrganizationGroupReference, OrganizationReference, OrganizationScheme, OrganizationSchemeReference, OriginalArchiveOrganizationReference, OtherMaterial, OutParameter, OverriddenCodeReference, ParentGeographicLevelReference, PhysicalDataProduct, PhysicalDataProductReference, PhysicalInstance, PhysicalInstanceReference, PhysicalRecordSegment, PhysicalStructure, PhysicalStructureGroup, PhysicalStructureGroupReference, PhysicalStructureLinkReference, PhysicalStructureReference, PhysicalStructureScheme, PhysicalStructureSchemeReference, PrecedesLocationValue, ProcessingEvent, ProcessingEventGroup, ProcessingEventGroupReference, ProcessingEventReference, ProcessingEventScheme, ProcessingEventSchemeReference, ProcessingInstructionGroup, ProcessingInstructionGroupReference, ProcessingInstructionReference, ProcessingInstructionScheme, ProcessingInstructionSchemeReference, PublisherReference, QualityStatement, QualityStatementGroup, QualityStatementGroupReference, QualityStatementReference, QualityStatementScheme, QualityStatementSchemeReference, QuestionBlock, QuestionBlockReference, QuestionConstruct, QuestionGrid, QuestionGridReference, QuestionGroup, QuestionGroupReference, QuestionItem, QuestionItemReference, QuestionMap, QuestionMapReference, QuestionReference, QuestionScheme, QuestionSchemeReference, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayout, RecordLayoutGroup, RecordLayoutGroupReference, RecordLayoutReference, RecordLayoutScheme, RecordLayoutSchemeReference, RecordRelationship, RelatedMapReference, RelatedToReference, Relation, RelationReference, RepeatUntil, RepeatWhile, RepresentationMap, RepresentationMapReference, RepresentedVariable, RepresentedVariableGroup, RepresentedVariableGroupReference, RepresentedVariableReference, RepresentedVariableScheme, RepresentedVariableSchemeReference, ResourcePackage, ResourcePackageReference, ResponseDomainReference, SamplingProcedure, ScaleDomainReference, ScaleRepresentationReference, Sequence, SimilarConceptReference, SourceCodeListReference, SourceLinkVariableReference, SourceLogicalRecordReference, SourceParameterReference, SourceQuestion, SourceSchemeReference, SourceVariable, SourceVariableReference, SpatialCoverage, SpatialCoverageReference, StandardUsed, StandardWeight, StandardWeightReference, StandardWeightReference, StatementItem, StimulusMaterial, StudyUnit, StudyUnitReference, SubCategoryReference, SubGroup, SubGroupReference, SubUniverseClass, SubUniverseClassReference, SubclassOfReference, SummaryDataReference, SupersedesLocationValue, TargetCodeListReference, TargetLinkVariableReference, TargetLogicalRecordReference, TargetParameterReference, TargetSchemeReference, TemporalCoverage, TemporalCoverageReference, TextDomainReference, TextRepresentationReference, ThenConstructReference, TimeMethod, TopLevelReference, TopicalCoverage, TopicalCoverageReference, Universe, UniverseGroup, UniverseGroupReference, UniverseMap, UniverseMapReference, UniverseReference, UniverseScheme, UniverseSchemeReference, UntilConstructReference, ValueRepresentationReference, Variable, VariableGroup, VariableGroupReference, VariableMap, VariableMapReference, VariableReference, VariableScheme, VariableSchemeReference, VariableStatistics, VariableStatisticsReference, VariableUsedReference, VersionResponsibilityReference, WeightVariableReference, Weighting, WeightingReference, WhileConstructReference