Ontology based image retrieval. - Umar Manzoor; Naveed Ejaz; Nadeem Akhtar; Muhammad Umar; M. Shoaib Khan; Hafsa Umar (ICITST, 2012)

AspectOCL: Extending OCL for Crosscutting Constraints. - Muhammad Uzair Khan; Numra Arshad; Muhammad Zohaib Iqbal; Hafsa Umar (ECMFA, 2015)