ORKG Shapes

go to ORKG: http://orkg.org/orkg/predicate/P39099

threat to validity

Risk that may affect the validity of an empirical study.

• http://orkg.org/orkg/shapes/orkgc_Resource
• http://orkg.org/orkg/shapes/orkgc_ContributionDeleted
• http://orkg.org/orkg/shapes/orkgc_C27001
• http://orkg.org/orkg/shapes/orkgc_Contribution