@article{Matsumoto:2009mx, author = "Matsumoto, Naoko", title = "{Variable Asymmetry of the Circumstellar Envelope in IK Tauri Traced by SiO Maser Emission }", doi = "10.22323/1.072.0085", journal = "PoS", year = 2009, volume = "IX EVN Symposium", pages = "085" }