@article{MZ_1964__84_170278,
     author = {Raphael M. Robinson},
     title = {Conjugate algebraic integers in real point sets.},
     journal = {Mathematische Zeitschrift},
     pages = {415--427},
     publisher = {mathdoc},
     volume = {84},
     year = {1964},
     zbl = {0126.02902},
     url = {http://geodesic.mathdoc.fr/item/MZ_1964__84_170278/}
}