1. International Energy Agency (IEA) (2019) Renewables 2018.
https://www.iea.org/renewables2018/
. Accessed on 1 Aug 2019
2. International Energy Agency (IEA) (2019) World energy outlook 2018.
https://webstore.iea.org/world-energy-outlook-2018
. Accessed on 1 Aug 2019
3. International Energy Agency (IEA) (2019) Clean energy investment trends 2019.
https://webstore.iea.org/clean-energy-investment-trends-2019
. Accessed on 1 Aug
4. International Energy Agency For Photovoltaic Power Systems (IEA-PVPS) (2019) IEA-PVPS annual report 2018.
http://www.iea-pvps.org/
. Accessed on 1 Aug 2019
5. Bizon N (2017) Searching of the extreme points on photovoltaic patterns using a new asymptotic perturbed extremum seeking control scheme. Energ Convers Manage 144:286–302