2019 Hatzigiannakoglou, P. D., & Okalidou, A. (2019). Development of an Auditory Rehabilitation Tool for children with Cochlear Implants through a Mobile-Based VR and AR serious game. International Journal of Online and Biomedical Engineering (iJOE), 15(2), 81-90. https://doi.org/gg23pn 2018 Okalidou, A., Papavassiliou-Alexiou, I., Zourna, C., & Anagnostou, F. E. (2018). Managing Communication of Students With Cochlear Implants in Schools for the Deaf: Professional Practices. Communication Disorders Quarterly, 39(4), 451-465. 2018 Martzos, T. G., & Papadopoulou, F. D. (2018). Factors and Criteria that Contribute to Achieving Proficiency in Greek Sign Language by Hearing Adult Learners. Sign Language Studies, 19(1), 100-137.