Adrian Kosowski Michal Malafiejski Pawel Zylinski An approximation algorithm for maximum P<sub>3</sub>-packing in subcubic graphs. 230-233 2006 99 Inf. Process. Lett. 6 http://dx.doi.org/10.1016/j.ipl.2006.05.003 db/journals/ipl/ipl99.html#KosowskiMZ06