20) S Salman, O Gunduz, S Yilmaz, ML Öveçoğlu, Robert L Snyder, S Agathopoulos, FN Oktar, "Sintering effect on mechanical properties of composites of natural hydroxyapatites and titanium", Ceramics International.

19) O Gunduz, Z Ahmad, N Ekren, S Agathopoulos, S Salman, FN Oktar, "Reinforcing of biologically derived apatite with commercial inert glass", Journal of Thermoplastic Composite Materials.

18) Oguzhan Gunduz, LS Ozyegin, Sergey V Dorozhkin, Onur Meydanoglu, Niyazi Eruslu, S Kayali, Simeon Agathopoulos, Faik N Oktar, "Bovine hydroxyapatite (BHA) boron oxide composites", Key Engineering Materials.

17) Oguzhan Gunduz, LS Ozyegin, Sergey V Dorozhkin, Onur Meydanoglu, Niyazi Eruslu, S Kayali, Gultekin Goller, Simeon Agathopoulos, Faik N Oktar, "Bovine hydroxyapatite (BHA) strontium oxide composites", Key Engineering Materials.

16) U Karacayli, O Gunduz, S Salman, LS Ozyegin, S Agathopoulos, FN Oktar, "Effect of sintering temperature on mechanical properties and microstructure of sheep-bone derived hydroxyapatite (SHA)", 13th International Conference on Biomedical Engineering.