X-ray absorption spectroscopy study on `La IND.0:6´`Sr IND.0:4´Co`O IND.3´ and `La IND.0:6´`Sr IND.0:4`Co IND.1-y´`Fe IND.y´`O IND.3´ nanotubes and nanorods for IT-SOFC cathodes - Lamas, D G (2013)