Sayapin, S. , Karpenko, A. , Dang, S.. "Self-Propelled Intelligent Robotic Vehicle Based on Octahedral Dodekapod to Move in Active Branched Pipelines with Variable Cross-Sections". World Academy of Science, Engineering and Technology, Open Science Index 108, International Journal of Mechanical and Mechatronics Engineering, (2015), 9(12), 2166 - 2172.