@article{10_1007_s10587_016_0288_4,
     author = {Rocha, Israel and Trevisan, Vilmar},
     title = {A {Fiedler-like} theory for the perturbed {Laplacian}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {717--735},
     publisher = {mathdoc},
     volume = {66},
     number = {3},
     year = {2016},
     doi = {10.1007/s10587-016-0288-4},
     mrnumber = {3556863},
     zbl = {06644029},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-016-0288-4/}
}