@inproceedings{Zampieri:2015u8, author = "Zampieri, Luca", title = "{Swift contribution to our understanding of Ultraluminous X-ray Sources }", doi = "10.22323/1.233.0048", booktitle = "Proceedings of Swift: 10 Years of Discovery {\textemdash} PoS(SWIFT 10)", year = 2015, volume = "233", pages = "048" }