RETENTION: A reactive trust-based mechanism to detect and punish malicious nodes in ad hoc grid environments. - Reinaldo Bezerra Braga; Igor A. Chaves; Carina Teixeira de Oliveira; Rossana M. C. Andrade; José Neuman de Souza; Hervé Martin; Bruno Schulze (J. Netw. Comput. Appl., 2013)