The hyperbolic Carnot theorem in the Poincaré disc model of hyperbolic geometry. Demirel, Oğuzhan; Soytürk, Emine — 2008 Novi Sad Journal of Mathematics
On the ordered sets in n -dimensional real inner product spaces. Demirel, Oğuzhan; Soytürk, Emine — 2008 APPS. Applied Sciences
On the relation between ordered sets and Lorentz--Minkowski distances in real inner product spaces. Demirel, Oğuzhan; Soytürk Seyrantepe, Emine — 2010 Acta Universitatis Apulensis. Mathematics - Informatics
The theorems of Urquhart and Steiner-Lehmus in the Poincaré ball model of hyperbolic geometry Oğuzhan Demirel; Emine Soytürk Seyrantepe — 2011 Matematički Vesnik