@article {heras1994,
	title = {Temperature dependence of the optical absorption edge of pyrite FeS <sub>2</sub>               thin films},
	journal = {Journal of Physics: Condensed Matter},
	volume = {6},
	year = {1994},
	month = {Feb-11-1995},
	pages = {10177 - 10183},
	issn = {0953-8984},
	doi = {10.1088/0953-8984/6/46/033},
	url = {http://stacks.iop.org/0953-8984/6/i=46/a=033?key=crossref.61b976ff921e0c9e9564b77a55dabd35}
}
