http://pascal.computer.org/sev_display/index.action
http://sebokwiki.org/wiki/ISO/IEC/IEEE_24765
http://sebokwiki.org/w/index.php?title=Guide_to_the_Systems_Engineering_Body_of_Knowledge_%28SEBoK%29&redirect=no
https://www.google.cz/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CCQQFjABahUKEwipjf26_IzJAhVCaRQKHUrJA3A&url=http%3A%2F%2Fwww.cse.msu.edu%2F~cse435%2FHandouts%2FStandards%2FIEEE24765.pdf&usg=AFQjCNG5H7rcgIKSrhbyH3SG1gkrUearbg&cad=rja