@article{10_1007_s10587_013_0051_z,
     author = {Ma, Xiaoling and Wen, Fei},
     title = {On the spectral radius of $\ddag $-shape trees},
     journal = {Czechoslovak Mathematical Journal},
     pages = {777--782},
     publisher = {mathdoc},
     volume = {63},
     number = {3},
     year = {2013},
     doi = {10.1007/s10587-013-0051-z},
     mrnumber = {3125653},
     zbl = {06282109},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10587-013-0051-z/}
}