TY - CONF T1 - ULTRACAM observations of the braking rate of the pre-CV NN Ser JO - Astrophysics of Cataclysmic Variables and Related Objects PY - 2005/01/01 AU - Brinkworth CS AU - Marsh TR AU - Dhillon VS AU - Feline WJ ED - VL - 330 SP - 329 EP - 330 Y2 - 2025/08/03 ER -