A lemma on proximity of variances and expectations
ESAIM: Probability and Statistics, Tome 4 (2000), pp. 229-231 
@article{PS_2000__4__229_0,
     author = {Sonsino, Doron},
     title = {A lemma on proximity of variances and expectations},
     journal = {ESAIM: Probability and Statistics},
     pages = {229--231},
     year = {2000},
     publisher = {EDP Sciences},
     volume = {4},
     mrnumber = {1808332},
     zbl = {0965.60008},
     language = {en},
     url = {https://www.numdam.org/item/PS_2000__4__229_0/}
}
TY  - JOUR
AU  - Sonsino, Doron
TI  - A lemma on proximity of variances and expectations
JO  - ESAIM: Probability and Statistics
PY  - 2000
SP  - 229
EP  - 231
VL  - 4
PB  - EDP Sciences
UR  - https://www.numdam.org/item/PS_2000__4__229_0/
LA  - en
ID  - PS_2000__4__229_0
ER  - 
%0 Journal Article
%A Sonsino, Doron
%T A lemma on proximity of variances and expectations
%J ESAIM: Probability and Statistics
%D 2000
%P 229-231
%V 4
%I EDP Sciences
%U https://www.numdam.org/item/PS_2000__4__229_0/
%G en
%F PS_2000__4__229_0
Sonsino, Doron. A lemma on proximity of variances and expectations. ESAIM: Probability and Statistics, Tome 4 (2000), pp. 229-231. https://www.numdam.org/item/PS_2000__4__229_0/

[1] P. Billingsley, Probability and Measure. 2nd edition. John Wiley & Sons, New York ( 1986). | Zbl | MR