Discovery of a hard component in the X-ray spectrum of the Z source GX 349+2 observed by BeppoSAX
Book chapter published in 2001 by
Nr Robba,
T. Di Salvo,
L. Burderi,
R. Iaria 
,
H. Inoue,
H. Kunieda
,
H. Inoue,
H. Kunieda
