Magnetotransport in a two-subband AlGaN/GaN heterostructure in the presence of mixed disorder Wilfried Desrat, Magdalena Chmielowska, Sébastien Chenot, Yvon Cordier and Benoît Jouault Eur. Phys. J. Appl. Phys., 68 2 (2014) 20102 Published online: 23 October 2014 DOI: 10.1051/epjap/2014140068