1, http://www.nydailynews.com/sports/basketball/tim-duncan-numbers-article-1.2636141
2, http://www.ksat.com/sports/nba/spurs/end-of-an-era-tim-duncan-career-highlights-with-spurs
3,http://www.forbes.com/sites/kurtbadenhausen/2016/07/11/tim-duncan-by-the-numbers/#13a71bc16344
4, http://www.espn.com/espn/feature/story/_/id/12833146/instagram-account-university-pennsylvania-runner-showed-only-part-story
5, http://www.usatoday.com/story/sports/nba/2016/07/11/tim-duncan-retire-nba-spurs-career-timeline/86703468/
6, http://www.sportsnet.ca/basketball/nba/tim-duncans-nba-accomplishments-numbers/
7, http://www.nba.com/spurs/tim-duncan-career-retrospective/
8,http://usa.chinadaily.com.cn/sports/2016-04/14/content_24534086_2.htm
https://theringer.com/tim-duncan-retirement-63c201d26f48#.pd7p7grg2
https://theringer.com/tim-duncan-retirement-greatest-duels-cdd6b75d73e4#.harjx7u6w