@article {Endale2014,
	title = {Investigation of photodegradation in polymer solar cells blended with different fullerenes derivatives},
	journal = {Solar Energy Materials and Solar Cells},
	volume = {123},
	year = {2014},
	month = {apr},
	pages = {150–158},
	doi = {10.1016/j.solmat.2014.01.001},
	author = {Endale, Tsegaye and Sovernigo, Enrico and Radivo, Andrea and Dal Zilio, Simone and Pozzato, Alessandro and Yohannes, Teketel and Vaccari, Lisa and Tormen, Massimo}
}
