@article{10_4153_CJM_2009_029_1,
     author = {Girouard, Alexandre},
     title = {Fundamental {Tone,} {Concentration} of {Density,} and {Conformal} {Degeneration} on {Surfaces}},
     journal = {Canadian journal of mathematics},
     pages = {548--565},
     year = {2009},
     volume = {61},
     number = {3},
     doi = {10.4153/CJM-2009-029-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2009-029-1/}
}