@conference {23954,
	title = {Variability of the x-ray sources detected in XMM-Newton survey of M33},
	year = {2005},
	month = {2005/06/1},
	pages = {99 - 102},
	url = {https://ui.adsabs.harvard.edu/abs/2005fysx.conf...99M},
	author = {Misanovic, Z. and Pietsch, W. and Haberl, F. and Ehle, M. and Hatzidimitriou, D. and Trinchieri, G.}
}
