@article{10_21136_CMJ_1987_102192,
     author = {Grone, Robert and Merris, Russell},
     title = {Algebraic connectivity of trees},
     journal = {Czechoslovak Mathematical Journal},
     pages = {660--670},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {1987},
     doi = {10.21136/CMJ.1987.102192},
     mrnumber = {913997},
     zbl = {0681.05022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1987.102192/}
}