@article{Gradari:2011RX, author = "Gradari, Serena and Barbieri, Mauro and Barbieri, Cesare and Naletto, Giampiero and Verroi, Enrico and Occhipinti, Tommaso and Zoccarato, Paolo and Germanà, Claudio and Possenti, Andrea and Zampieri, Luca", title = "{The optical pulsar B0540-69}", doi = "10.22323/1.108.0035", journal = "PoS", year = 2011, volume = "HTRA-IV", pages = "035" }