All Colors Shortest Path problem on trees. - Mehmet Berkehan Akçay; Hüseyin Akcan; Cem Evrendilek (J. Heuristics, 2018)

Speech emotion recognition: Emotional models, databases, features, preprocessing methods, supporting modalities, and classifiers. - Mehmet Berkehan Akçay; Kaya Oguz (Speech Commun., 2020)