Links

http://www.unsrcsingers.org/es/members.htm

http://www.youtube.com/user/unsingers

http://www.russianmix.com/events/details/2142

http://worldinsong.wordpress.com/tag/guillermo-vaisman/

http://www.linkedin.com/pub/guillermo-vaisman/17/720/ba5

http://www.linkedin.com/pub/guillermo-vaisman/17/720/ba5