@inbook{chrimatopoulos25,
author = {G.Chrimatopoulos and S. Katsoulas and M. Xenos},
title={},
booktitle={},
chapter={Chapter 5},
pages={},
doi={}
year={}
url={https://www.worldsciendific.com/doi/abs/10.1142/9789819802074_0005}
misc{website21,
author={{W}ikipedia},
title={{A}rtificial {I}ntelligence -- {W}ikipedia},
year={2021},
url={https://en.wikipedia.org/wiki/Artificial_intelligence},
note={[Online; accessed 1st January2021]}