@article{10_37236_180,
     author = {Jill Faudree and Ralph J. Faudree and Ronald J. Gould and Michael S. Jacobson},
     title = {Saturation numbers for trees},
     journal = {The electronic journal of combinatorics},
     year = {2009},
     volume = {16},
     number = {1},
     doi = {10.37236/180},
     zbl = {1186.05072},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/180/}
}