Add punctuation: March 11th European Conference of Advanced Computer Technics Zaragoza Spain
A: [March 11th] European Conference of Advanced Computer Technics, Zaragoza, Spain

Add punctuation: Nine Scientific Schools are functioning within the University
A: Nine Scientific Schools are functioning within the University.

Add punctuation: Two big groups have celebrated their 30 years jubilees in Champagne this June
A:
Two big groups have celebrated their 30 years jubilees in Champagne this June.