TY  - JOUR
AU  - P.L. Butzer
AU  - L. Hahn
TI  - A probabilistic approach to representation formulae for semigroups of operators with rates of convergence.
JO  - Semigroup forum
PY  - 1980
SP  - 257
EP  - 272
VL  - 21
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1980__21_134451/
ID  - SF_1980__21_134451
ER  -