@article{10_37236_4402,
     author = {Hao Huang and Benny Sudakov},
     title = {The minimum number of nonnegative edges in hypergraphs},
     journal = {The electronic journal of combinatorics},
     year = {2014},
     volume = {21},
     number = {3},
     doi = {10.37236/4402},
     zbl = {1300.05142},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4402/}
}