Sufficient Knowledge Omission Error and Redundant Disjoint Relation in Ontology. - Muhammad Wajahaat Noshairwan; Muhammad Abdul Qadir 001; Muhammad Fahad 011 (AWIC, 2007)

Semantic Inconsistency Errors in Ontology. - Muhammad Fahad 011; Muhammad Abdul Qadir 001; Muhammad Wajahaat Noshairwan (GrC, 2007)

On Conceptualization Mismatches Between Ontologies. - Muhammad Abdul Qadir 001; Muhammad Fahad 011; Muhammad Wajahaat Noshairwan (GrC, 2007)

Warnings for Disjoint Knowledge Omission in Ontologies. - Muhammad Abdul Qadir 001; Muhammad Wajahaat Noshairwan (ICIW, 2007)

Ontological Errors - Inconsistency, Incompleteness and Redundancy. - Muhammad Fahad 011; Muhammad Abdul Qadir 001; Muhammad Wajahaat Noshairwan (ICEIS (3-2), 2008)