Heydarnia, O. , Allahverdizadeh, A. , Dadashzadeh, B. , Noorani, M.. "Control of Underactuated Biped Robots Using Event Based Fuzzy Partial Feedback Linearization". World Academy of Science, Engineering and Technology, Open Science Index 117, International Journal of Mechanical and Materials Engineering (2016), 10(9), 1630 - 1636.