@inbook{ author = {B. Matthiesen and E.A. Jorswieck}, year = {2020}, month = {Nov}, title = {Optimization Techniques for Energy Efficiency}, editor = {Himal Asanga Suraweera, Jing Yang, Alessio Zappone, John S. Thompson}, publisher = {IET}, ISBN = {978-1-83953-067-8}, URL = {https://shop.theiet.org/green-communications-for-energy-efficient-wireless-systems-and-networks}, address={Hertfordshire, UK}, booktitle={Green Communications for Energy-Efficient Wireless Systems and Networks} }