Demetriou IC, Pardalos PM. Chapter 1 Introduction to Approximation and Optimization: Algorithms, Complexity and Applications. In: Approximation and Optimization: Algorithms, Complexity and Applications. IC Demetriou, PM Pardalos (Editors). Springer Optimization and Its Applications 145, Springer Nature Switzerland AG; 2019. pp. 1-4.

Demetriou IC, Tzitziris P. Infant Mortality and Income per Capita of World Countries for 1998-2016: Classification and Modeling by Increasing Returns. In: Transactions on Engineering Technologies, 25th World Conference on Engineering (WCE 2017). Sio-long Ao, Len Gelman, Haeng Kon Kim, Editors. Springer; 2019. pp. 71-93.

Approximation and Optimization: Algorithms, Complexity and Applications. IC Demetriou, PM Pardalos (Editors). Collection of papers, Proceedings of the homonymous conference, June 29-30, 2017, Athens, Greece: Springer Optimization and Its Applications 145, Springer Nature Switzerland AG (Book Review by: Oleg Burdakov, SN Operations Research Forum, 2020, Vol. 1(1), pp. 1-6. https://doi.org/10.1007/s43069-020-0006-9). https://doi.org/10.1007/978-3-030-12767-1; 2019 pp. 247. Publisher's Version