@article{1077475362,
author = {Horn, Alfred and Valentine, F. A.},
title = {Some properties of $L$ -sets in the plane},
journal = {Duke Math. J.},
volume = {16},
number = {1},
year = {1949},
pages = { 131-140},
language = {en},
url = {http://dml.mathdoc.fr/item/1077475362}
}
Horn, Alfred; Valentine, F. A. Some properties of $L$ -sets in the plane. Duke Math. J., Tome 16 (1949) no. 1, pp. 131-140. http://gdmltest.u-ga.fr/item/1077475362/