Building a Fintech Ecosystem: Design and Development of a Fintech API Gateway. - Ersin Ünsal; Bilgehan Öztekin; Murat Çavus; Suat Özdemir (ISNCC, 2020)

Testing OpenAPI Banking Payment System with Model Based Test Approach. - Ahmet Sapan; Bilgehan Öztekin; Ersin Ünsal; Alper Sen 001 (UYMS, 2020)