skos-referenceConceptscheme
ApplicationSystemTypesAreaValidityTypesBandwidthTypesBgTiltingFunctionTypesButtonFunctionTypesCodeLetterCommunicationLevelTypesCommunicationMediumTypesCommunicationNetworkTypesCommunicationTechnologyTypesDerailerIndicatorTypesDirectionArrowTypeDocumentTypesDualFlankProtectionMeasureTypesDualFlankProtectionTypesFictitiousSignalFunctionTypesGfkCategoryTypesIndicatorFunctionTypesLensDiffuserOrientationTypesLensDiffuserTypesLevelCrossingOperationalPlugTypesLevelCrossingProtectionTypesLevelCrossingTechnologyTypesLevelCrossingUiFunctionTypesLocalControlTypesLtFunctionTypesMainRouteTypesModemTypesNbrFunctionalityTypesNonStandardPositionTypesPlatformHeightsPointElementSideTypesPzbFrequencyTypesPzbRouteRelationTypesPzbSpeedCheckingSystemTypesShuntingRouteTypesSignalFunctionTypesSignalSystemTypesSignalTypeTypesSourceOfLabelInformationTypes