المؤلفون: Alessandro N. Cappellini, Gianluigi Ferraris

المصدر: World Scientific Publishing Co. Pte. Ltd., Advances in Complex Systems (ACS). 12(02):195-206

الإتاحة: https://ideas.repec.org/a/wsi/acsxxx/v12y2009i02ns021952590900212x.html