@article{GDZPPN002449560, title = {Optimum allocation in stratisfied sampling with replacement}, journal = {Metrika}, volume = {9}, year = {1965}, pages = {212-221}, zbl = {0152.37502}, url = {http://dml.mathdoc.fr/item/GDZPPN002449560} }
Ghosh, S.P. Optimum allocation in stratisfied sampling with replacement. Metrika, Tome 9 (1965) pp. 212-221. http://gdmltest.u-ga.fr/item/GDZPPN002449560/