@TechReport{Mertzios-AIB1007,
author = "George B. Mertzios",
title = "A New Intersection Model for Multitolerance Graphs, Hierarchy, and Efficient Algorithms",
institution = "RWTH Aachen",
year = "2010",
number = "AIB-2010-07",
month = "March",
url ="http://aib.informatik.rwth-aachen.de/2010/2010-07.pdf"
}