@TechReport{MertziosUngerAIB0809,
 author =      "George B. Mertzios and Walter Unger",
 title =       "An optimal algorithm for the k-fixed-endpoint path cover on proper interval graphs",
 institution = "RWTH Aachen",
 year =        "2008",
 number =      "AIB-2008-09",
 month =       "May",
 url =         "http://aib.informatik.rwth-aachen.de/2008/2008-09.pdf"
}