@article{10_1090_S1079_6762_99_00064_5,
     author = {Brooks, Robert and Makover, Eran},
     title = {The first eigenvalue of a {Riemann} surface},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {76--81},
     publisher = {mathdoc},
     volume = {05},
     year = {1999},
     doi = {10.1090/S1079-6762-99-00064-5},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-99-00064-5/}
}