Surguladze, G. , Petriashvili, L. , Topuria, N. , Surguladze, G. (2015), 'Modelling of Designing a Conceptual Schema for Multimodal Freight Transportation Information System', World Academy of Science, Engineering and Technology, Open Science Index 107, International Journal of Computer and Information Engineering, 9(11), 2313 - 2316.