TY  - JOUR
AU  - Sheldy Ombrosi
AU  - Carlos Pérez
TI  - Mixed weak type estimates: Examples and counterexamples related to a problem of E. Sawyer
JO  - Colloquium Mathematicum
PY  - 2016
SP  - 259
EP  - 272
VL  - 145
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm4939-6-2016/
DO  - 10.4064/cm4939-6-2016
LA  - en
ID  - 10_4064_cm4939_6_2016
ER  -