@article{ADM_2005_3_a4,
     author = {K. D. Protasova},
     title = {On {square-Hamiltonian} graphs},
     journal = {Algebra and discrete mathematics},
     pages = {56--59},
     year = {2005},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2005_3_a4/}
}