@article{1177730103,
author = {Lev, Joseph},
title = {The Point Biserial Coefficient of Correlation},
journal = {Ann. Math. Statist.},
volume = {20},
number = {4},
year = {1949},
pages = { 125-126},
language = {en},
url = {http://dml.mathdoc.fr/item/1177730103}
}
Lev, Joseph. The Point Biserial Coefficient of Correlation. Ann. Math. Statist., Tome 20 (1949) no. 4, pp. 125-126. http://gdmltest.u-ga.fr/item/1177730103/