@article{article5bdb7376,
title   = {Radial frequency diagram (sunflower) for the analysis of diurnal cycle parameters: solar energy application},
author = {Boznar, Marija Zlata and Grasic, Bostjan and Mlakar, Primoz and Soares, Jacyra Ramos and Oliveira, Amauri Pereira de and Costa, Tássio Santos},
year = {2015},
doi = {10.1016/j.apenergy.2015.05.055},
journal   = {Applied Energy}
}