@article{GDZPPN002077183,
title = {Theorems related to Wallace's (Simson's) Line.},
journal = {Elemente der Mathematik},
volume = {25},
year = {1970},
pages = {28-34},
zbl = {0187.42404},
url = {http://dml.mathdoc.fr/item/GDZPPN002077183}
}
Steller, E.T. Theorems related to Wallace's (Simson's) Line.. Elemente der Mathematik, Tome 25 (1970) pp. 28-34. http://gdmltest.u-ga.fr/item/GDZPPN002077183/