A Linear Time Algorithm for the Minimum Spanning Caterpillar Problem for Bounded Treewidth Graphs. - Michael J. Dinneen; Masoud Khosravani (SIROCCO, 2010)

Hardness of Approximation and Integer Programming Frameworks for Searching for Caterpillar Trees. - Michael J. Dinneen; Masoud Khosravani (CATS, 2011)