Maintainer: Ognyan Kulev <ogi@fmi.uni-sofia.bg>
* TUTORIAL.cn:
-Author: Chao-Hong Liu <chliu@gnu.org>
-Maintainer: Chao-Hong Liu <chliu@gnu.org>
+Author: Sun Yijiang <sunyijiang@gmail.com>
+Maintainer: Sun Yijiang <sunyijiang@gmail.com>
* TUTORIAL.cs:
Author: Milan Zamazal <pdm@zamazal.org>