TY - GEN T1 - Observations of Ultracool dwarfs with ULTRACAM on the VLT: a search for weather T2 - arXiv PY - 2006/05/09 AU - Littlefair SP AU - Dhillon VS AU - Marsh TR AU - Shahbaz T AU - Martin EL ED - Y2 - 2024/12/22 ER -