@booklet {bol2013graphene,
	title = {Graphene Solar Cell},
	year = {2013},
	note = {<p>US Patent App. 13/772,990</p>
},
	abstract = {n/a},
	author = {Bol, Ageeth A and Kasry, Amal and Maarouf, Ahmed and Martyna, Glenn J and Newns, Dennis M and Nistor, Razvan A and Tulevski, George S}
}
