Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Wasim Ul-Haq, Javed Iqbal. r-Preinvex Functions. J. Applied Mathematics, 2013, 2013. [doi]
Abstract is missing.