@article{1177013234,
author = {Margolin, Barry H.},
title = {[The Role of a Second Control Group in an Observational Study]: Comment: The Use of Multiple Control Groups in Designed Experiments},
journal = {Statist. Sci.},
volume = {2},
number = {4},
year = {1987},
pages = { 308-310},
language = {en},
url = {http://dml.mathdoc.fr/item/1177013234}
}
Margolin, Barry H. [The Role of a Second Control Group in an Observational Study]: Comment: The Use of Multiple Control Groups in Designed Experiments. Statist. Sci., Tome 2 (1987) no. 4, pp. 308-310. http://gdmltest.u-ga.fr/item/1177013234/