@article{1183415641,
author = {Emch, Arnold},
title = {Reciprocal transformations of projective co\"ordinates and the theorems of Ceva and Menelaos},
journal = {Bull. Amer. Math. Soc.},
volume = {4},
number = {8},
year = {1898},
pages = { 143-150},
language = {en},
url = {http://dml.mathdoc.fr/item/1183415641}
}
Emch, Arnold. Reciprocal transformations of projective coördinates and the theorems of Ceva and Menelaos. Bull. Amer. Math. Soc., Tome 4 (1898) no. 8, pp. 143-150. http://gdmltest.u-ga.fr/item/1183415641/