@article{10_37236_690,
     author = {Jan Ekstein},
     title = {Hamiltonian cycles in the square of a graph},
     journal = {The electronic journal of combinatorics},
     year = {2011},
     volume = {18},
     number = {1},
     doi = {10.37236/690},
     zbl = {1229.05196},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/690/}
}