8I. Gorton, D. Thurman, J. Thomson, Next generation application integration: challenges and new approaches, In: Proceedings of 27th Annual International on Computer Software and Applications Conference (COMPSAC'03), Washington: IEEE Computer Society, 2003,576-581.
9M. P. Papazoglou, Service-oriented computing: concepts, characteristics and directions, In: Proceedings of the 4th International Conference on Web Information Systems Engineering (WISE'03), Washington: IEEE Computer Society, 2003, 3-12.
