2218-3620 2218-3620 S2218-36202018000100041 República del Ecuador 00 03 2018 00 03 2018 10 1 41 45

2004 2014 2002 Cisco Systems 2017 2001 2012 IBM Knowledge Center 2017 2013 1 1 1 28-32 2005 11 27 27 2000