@article{10_37236_9944,
     author = {L\'aszl\'o Lov\'asz},
     title = {Discrete quantitative nodal theorem},
     journal = {The electronic journal of combinatorics},
     year = {2021},
     volume = {28},
     number = {3},
     doi = {10.37236/9944},
     zbl = {1473.05179},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/9944/}
}