@article{1177731170,
author = {Stephan, Frederick F.},
title = {The Expected Value and Variance of the Reciprocal and Other Negative Powers of a Positive Bernoullian Variate},
journal = {Ann. Math. Statist.},
volume = {16},
number = {4},
year = {1945},
pages = { 50-61},
language = {en},
url = {http://dml.mathdoc.fr/item/1177731170}
}
Stephan, Frederick F. The Expected Value and Variance of the Reciprocal and Other Negative Powers of a Positive Bernoullian Variate. Ann. Math. Statist., Tome 16 (1945) no. 4, pp. 50-61. http://gdmltest.u-ga.fr/item/1177731170/