BOUAJJANI, Ahmed, Jan STREJČEK a Tayssir TOUILI. On Symbolic Verification of Weakly Extended PAD. In Proceedings of the 13th International Workshop on Expressiveness in Concurrency (EXPRESS 2006). Neuveden: Elsevier. s. 47-64. ISSN 1571-0661. 2007.
BOUAJJANI, Ahmed, Jan STREJČEK a Tayssir TOUILI. On Symbolic Verification of Weakly Extended PAD. In Preliminary Proceedings - 13th International Workshow on Expressiveness in Concurrency - EXPRESS'06. London: Imperial College London. s. 29-41. 2006.