..............page:181-184
..............page:172-176
..............page:193-195
..............page:185-188
..............page:200-203
..............page:232-236
Best touring route
wang xiao chen(department of computer science; northeastern university; shenyang 110006; china)
..............page:177-180
..............page:189-192
..............page:237-240
..............page:215-218
..............page:196-199
..............page:161-164
..............page:169-171
..............page:165-168
..............page:223-226
..............page:219-222
..............page:227-231
IP-VPN and its key technology
zhang hao hua; zhao zi fu; ma shi jun(collage of physics science and technology; shenyang normal university; shenyang 110034; china)
..............page:204-207
..............page:208-214