@article{10_1017_S001708950000656X,
     author = {Deszy\'nski, Krzysztof},
     title = {A theorem on polynomial lorentz structures},
     journal = {Glasgow mathematical journal},
     pages = {229--235},
     year = {1986},
     volume = {28},
     number = {2},
     doi = {10.1017/S001708950000656X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708950000656X/}
}