@article{GDZPPN002344467,
title = {A remark on the construction of the centre of a circle by means of the ruler},
journal = {Mathematica Scandinavica},
volume = {4},
year = {1956},
pages = {157-160},
zbl = {0070.16102},
url = {http://dml.mathdoc.fr/item/GDZPPN002344467}
}
GRAM, CHRISTIAN. A remark on the construction of the centre of a circle by means of the ruler. Mathematica Scandinavica, Tome 4 (1956) pp. 157-160. http://gdmltest.u-ga.fr/item/GDZPPN002344467/