1. Arslan, H, Karaca, I, Oztel, A: Homology groups of n-dimensional digital images XXI. Turkish National Mathematics Symposium, B1–13 (2008)
2. Boxer L, Karaca I, Oztel A: Topological invariants in digital images. J. Math. Sci. Adv. Appl. 2011, 11(2):109–140.
3. Demir, E, Karaca, I: Simplicial Homology Groups of Certain Digital Surfaces. Preprint (2012)
4. Karaca I, Ege O: Some results on simplicial homology groups of 2D digital images. Int. J. Inf. Comput. Sci. 2012, 1(8):198–203.
5. Ege O, Karaca I: Fundamental properties of simplicial homology groups for digital images. Am. J. Comput. Technol. Appl. 2013, 1(2):25–42.