Jill R. Faudree, Ralph J. Faudree, Ronald J. Gould, Michael S. Jacobson. Saturation Numbers for Trees. Electr. J. Comb., 16(1), 2009. [doi]
@article{FaudreeFGJ09-0, title = {Saturation Numbers for Trees}, author = {Jill R. Faudree and Ralph J. Faudree and Ronald J. Gould and Michael S. Jacobson}, year = {2009}, url = {http://www.combinatorics.org/Volume_16/Abstracts/v16i1r91.html}, researchr = {https://researchr.org/publication/FaudreeFGJ09-0}, cites = {0}, citedby = {0}, journal = {Electr. J. Comb.}, volume = {16}, number = {1}, }