@article{article83aa8b0a,
title   = {Cyclic variability of the circumstellar disk of the Be star 'dzeta' Tauri: I. Long-term monitoring observations},
author = {Stefl, S and Rivinius, Th and Carciofi, Alex Cavalieri and Le Bouquin, J.-B and Baade, Dietrich and Bjorkman, K.S and Hesselbach, E and Hummel, C.A and Okasaki, A.T and Pollmann, E and Rantakyrö, F and Wisniewski, J. P},
year = {2009},
journal   = {Astronomy & Astrophysics}
}