@article{10_1007_s10587_012_0038_1,
     author = {Zhang, Guang-Jun and Zhang, Xiao-Dong},
     title = {The first {Dirichlet} eigenvalue of bicyclic graphs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {441--451},
     publisher = {mathdoc},
     volume = {62},
     number = {2},
     year = {2012},
     doi = {10.1007/s10587-012-0038-1},
     mrnumber = {2990185},
     zbl = {1265.05429},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-012-0038-1/}
}