@article{10_37236_6450,
     author = {Andrei A. Bulatov and Olga Karpova and Arseny M. Shur and Konstantin Startsev},
     title = {Lower bounds on words separation: are there short identities in transformation semigroups?},
     journal = {The electronic journal of combinatorics},
     year = {2017},
     volume = {24},
     number = {3},
     doi = {10.37236/6450},
     zbl = {1372.68156},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/6450/}
}