author = { Trowbridge, Sarah AND Nowak, Michael A. AND Wilms, Jorn },

title = { Tracking the Orbital and Superorbital Periods of SMC X‐1 },

publisher = {American Astronomical Society},

isbn = {0004-637X},

isbn = {1538-4357},

keywords = { Space and Planetary Science , Astronomy and Astrophysics },

year = {2007},

url = { http://slubdd.de/katalog?TN_libero_mab2 }