@article{10_37236_1510,
     author = {Harold Fredricksen and Melvin M. Sweet},
     title = {Symmetric sum-free partitions and lower bounds for {Schur} numbers},
     journal = {The electronic journal of combinatorics},
     year = {2000},
     volume = {7},
     doi = {10.37236/1510},
     zbl = {0944.05093},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1510/}
}