@article{DMGT_2010_30_3_a5,
     author = {Lu, You and Hou, Xinmin and Xu, Jun-Ming and Li, Ning},
     title = {A characterization of (\ensuremath{\gamma}ₜ,\ensuremath{\gamma}₂)-trees},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {425--435},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2010_30_3_a5/}
}