@article{10_1017_S0017089500002202,
     author = {Sands, A. D.},
     title = {On a conjecture of {G.} {Haj\'os}},
     journal = {Glasgow mathematical journal},
     pages = {88--89},
     year = {1974},
     volume = {15},
     number = {1},
     doi = {10.1017/S0017089500002202},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500002202/}
}