A numerical approach to determine viscosity-dependent segregation in fresh concrete. - Ahmet Bilgil; Baki Ozturk; Halis Bilgil (Appl. Math. Comput., 2005)

Application of Fractional SIQRV Model for SARS-CoV-2 and Stability Analysis. - Zafer Öztürk; Halis Bilgil; Sezer Sorgun (Symmetry, 2023)

A fractional-order mathematical model based on vaccinated and infected compartments of SARS-CoV-2 with a real case study during the last stages of the epidemiological event. - Halis Bilgil; Ali Yousef; Ayhan Erciyes; Ümmügülsüm Erdinç; Zafer Öztürk (J. Comput. Appl. Math., 2023)

Comparision of Conformable and Caputo fractional grey models. - Halis Bilgil; Simge Yüksel (J. Comput. Appl. Math., 2025)