@article{10_37236_1196,
     author = {Aviezri S. Fraenkel and R. Jamie Simpson},
     title = {How many squares must a binary sequence contain?},
     journal = {The electronic journal of combinatorics},
     year = {1995},
     volume = {2},
     doi = {10.37236/1196},
     zbl = {0816.11007},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/1196/}
}