TY  - JOUR
AU  - Qi Feng
TI  - An improper integral, the beta function, the Wallis ratio, and the Catalan numbers
JO  - Problemy analiza
PY  - 2018
SP  - 104
EP  - 115
VL  - 7
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PA_2018_7_1_a6/
LA  - en
ID  - PA_2018_7_1_a6
ER  -