JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS, vol. 5, no. 2, page. 257 - 261, 2010-08
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 35, no. 3, page. 1065 - 1073, 2010-02
BIORESOURCE TECHNOLOGY, vol. 135, page. 568 - 573, 2013-05