A Spitzer IRS low-resolution spectroscopic search for buried AGNs in nearby ultraluminous infrared galaxies: A constraint on geometry between energy sources and dust
Journal article published in 2007 by
M. Imanishi,
C. C. Dudley,
R. Maiolino,
P. R. Maloney,
T. Nakagawa,
G. Risaliti 
