S. Kajita, F. Kanehiro, K. Kaneko, K. Fujiwara, K. Yokoi, and H. Hirukawa, “A realtime pattern generator for biped walking,” in Proc. IEEE Int. Conf. Robot. Autom., 2002, vol. 1, pp. 31-37.
T. Aoyama, Y. Hasegawa, K. Sekiyama, and T. Fukuda, “Stabilizing and direction control of efficient 3-D biped walking based on PDAC,” IEEE/ASME Trans. Mechatron., vol. 14, no. 6, pp. 712- 718, Dec. 2009.
K. Harada, S. Hattori, H. Hirukawa, M. Morisawa, S. Kajita, and E. Yoshida, “Two-stage time-parametrized gait planning for humanoid robots,” IEEE/ASME Trans. Mechatron., vol. 15, no. 5, pp. 694-703, Oct. 2010.
Y.-D. Hong, B.-J. Lee, and J.-H. Kim, “Command state-based modifiable walking pattern generation on an inclined plane in pitch and roll directions for humanoid robots,” IEEE/ASME Trans. Mechatron., vol. 16, no. 4, pp. 783-789, Aug. 2011.
Y.-D. Hong, C.-S. Park, and J.-H. Kim, “Stable bipedal walking with a vertical center of mass motion by an evolutionary optimized central pattern generator,” IEEE Trans. Ind. Electron., vol. 61, no. 5, pp. 2246-2355, May 2014.
Y.-D. Hong, “An evolutionary optimization approach for optimal hopping of humanoid robots,” J. Elect. Eng. Technol., vol. 10, no. 6, pp. 2420-2426, Nov. 2015.
S. Kajita and K. Tani, “Study of dynamic biped locomotion on rugged terrain -Derivation and application of the linear inverted pendulum mode-,” in Proc. IEEE Int. Conf. Robot. Autom., 1991, pp. 1405-1411.
Q. Huang and Y. Nakamura, “Sensory reflex control for humanoid walking,” IEEE Trans. Robot., vol. 21, no. 5, pp. 977-984, Oct. 2005.
S. Kajita, M. Morisawa, K. Harada, K. Kaneko, F. Kanehiro, K. Fujiwara, and H. Hirukawa, “Biped walking pattern generator allowing auxiliary ZMP control,” in Proc. IEEE/RSJ Int. Conf. Intell. Robot. Syst., 2006, pp. 2993-2999.
K. Nishiwaki and S. Kagami, “Walking control on uneven terrain with short cycle pattern generation,” in Proc. IEEE-RAS Int. Conf. Humanoid Robots, 2007, pp. 447-453.
T. Takubo, Y. Imada, K. Ohara, Y. Mae, and T. Arai, “Rough terrain walking for bipedal robot by using ZMP criteria map,” in Proc. IEEE Int. Conf. Robot. Autom., 2009, pp. 788-793.
Y. Zheng, M. C. Lin, D. Manocha, A. H. Adiwahono, and C.-M. Chew, “A walking pattern generator for biped robots on uneven terrains,” in Proc. IEEE/RSJ Int. Conf. Intell. Robot. Syst., 2010, pp. 4483-4488.
E. Ohashi, T. Sato, and K. Ohnishi, “A walking stabilization method based on environmental modes on each foot for biped robot,” IEEE Trans. Ind. Electron., vol. 56, no. 10, pp. 3964-3974, Oct. 2009.
H.-J. Kang, K. Hashimoto, H. Kondo, K. Hattori, K. Nishikawa, Y. Hama, H.-O. Lim, A. Takanishi, K. Suga, and K. Kato, “Realization of biped walking on uneven terrain by new foot mechanism capable of detecting ground surface,” in Proc. IEEE Int. Conf. Robot. Autom., 2010, pp. 5167-5172.
Y.-D. Hong and J.-H. Kim, “3-D command state-based modifiable bipedal walking on uneven terrain,” IEEE/ASME Trans. Mechatron., vol. 18, no. 2, pp. 657-663, Apr. 2013.
Y.-D. Hong and B.-J. Lee, “Experimental study on modifiable walking pattern generation for handling infeasible navigational commands,” J. Elect. Eng. Technol., vol. 10, no. 6, pp. 2368-2375, Nov. 2015.
H. V. Henderson and S. R. Searle, “The vec-permutation matrix, the vec operator and kronecker products: a review,” Linear Multilinear Algebra, vol. 9, no. 4, pp. 271-288, 1981.
Y.-D. Hong, Y.-H. Kim, J.-H. Han, J.-K. Yoo, and J.-H. Kim, “Evolutionary multiobjective footstep planning for humanoid robots,” IEEE Trans. Syst. Man. Cybern. C, Appl. Rev., vol. 41, no. 4, pp. 520-532, Jul. 2011.
Y.-D. Hong and J.-H. Kim, “An evolutionary optimized footstep planner for the navigation of humanoid robots,” Int. J. Humanoid Robot., vol. 9, no. 1, Mar. 2012.
Y.-D. Hong, “Real-time footstep planning and following for navigation of humanoid robots,” J. Elect. Eng. Technol., vol. 10, no. 5, pp. 2142-2148, Sep. 2015.