@incollection{Zhang11, author = {Tao Zhang and Xiaqin Li and Yi Zhu and Song Chen and Yu Cheng and Jingyan Song}, title = {Formation and Obstacle Avoidance in the Unknown Environment of Multi-Robot System}, booktitle = {Multi-Robot Systems}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Toshiyuki Yasuda}, chapter = {2}, doi = {10.5772/12904}, url = {https://doi.org/10.5772/12904} }