@article{GDZPPN002461242, title = {Risk-Efficient Nonparametric Sequential Estimators.}, journal = {Metrika}, volume = {34}, year = {1987}, pages = {25-30}, zbl = {0609.62121}, url = {http://dml.mathdoc.fr/item/GDZPPN002461242} }
Goldmann, W. Risk-Efficient Nonparametric Sequential Estimators.. Metrika, Tome 34 (1987) pp. 25-30. http://gdmltest.u-ga.fr/item/GDZPPN002461242/