-
Alomari, M. and M. Darus. "The Hadamard’s inequality for s-convex function." Int. J. Math. Anal. (Ruse) 2, no. 13-16 (2008): 639-646.
-
Ben-Israel, A. and B. Mond. "What is invexity?" J. Austral. Math. Soc. Ser. B 28, no. 1 (1986): 1-9.
-
Dragomir, S.S. "On the Hadamard’s inequality for convex functions on the coordinates in a rectangle from the plane." Taiwanese J. Math. 5, no. 4 (2001): 775-788.
-
Hanson, Morgan A. "On sufficiency of the Kuhn-Tucker conditions." J. Math. Anal. Appl. 80, no. 2 (1981): 545-550.
-
Kilbas, Anatoly A., Hari M. Srivastava and Juan J. Trujillo. Theory and applications of fractional differential equations. Vol. 204 of North-Holland Mathematics Studies. Amsterdam: Elsevier Science B.V., 2006.
-
Latif, M.A. and M. Alomari. "Hadamard-type inequalities for product two convex functions on the co-ordinates." Int. Math. Forum 4, no. 45-48 (2009): 2327-2338.
-
Latif, M. A. and M. Alomari. "New inequalities of Ostrowski type for co-ordinated convex functions via fractional integrals." J. Fract. Calc. Appl. 2, no. 9 (2012): 1-15.
-
Latif, M.A. and S.S. Dragomir. "Some Hermite-Hadamard type inequalities for functions whose partial derivatives in absolute value are preinvex on the coordinates." Facta Univ. Ser. Math. Inform. 28, no. 3 (2013): 257-270.
-
Matłoka, Marian. "On some Hadamard-type inequalities for (h1, h2)-preinvex functions on the co-ordinates." J. Inequal. Appl. 2013, (2013): art id. 227.
-
Meftah, B., K. Boukerrioua and T. Chiheb. "New Hadamard’s inequality for (s1, s2)-preinvex functions on co-ordinates." Kragujevac J. Math. 39, no. 2 (2015): 231-254.