- VML* -- A Family of Languages for Variability Management in Software Product LinesSteffen Zschaler, Pablo Sanchez, Joao Santos, Mauricio Alferez, Awais Rashid, Lidia Fuentes, Ana Moreira, Joao Araujo, Uirá Kulesza. In Software Language Engineering, 2nd Int'l Conf. (SLE 2009), Revised Selected Papers. 2010: