lne_fly的博客

http://sdformat.org/

http://gazebosim.org/

http://www.grinninglizard.com/tinyxml/index.html https://www.cnblogs.com/mythou/archive/2011/11/27/2265169.html

http://answers.gazebosim.org/question/13214/virtual-machine-not-launching-gazebo/

http://www.ncnynl.com/archives/201708/1932.html http://www.tk4479.net/wangran1996/article/details/70598146 http://liusong.me/shu-xue-wu-li/ https://www.theoj.org/joss-papers/joss.00456/10.21105