@techreport{Biedl2001,
 author={Therese Biedl and  Brona Brejova and  Erik D. Demaine and  Angele M. Hamel and  Alejandro Lopez-Ortiz and  Tomas Vinar},
 title={{Finding Hidden Independent Sets in Interval Graphs}},
 number={CS-2001-26},
 institution={University of Waterloo},
 month={December},
 year={2001}
}