@inproceedings{Fiocchi:20128v, author = "Fiocchi, Maria Teresa", title = "{The 17 min orbital period in the Ultra Compact X-ray Binary 4U 0513-40}", doi = "10.22323/1.147.0070", booktitle = "Proceedings of The Extreme and Variable High Energy Sky {\textemdash} PoS(Extremesky 2011)", year = 2012, volume = "147", pages = "070" }