TY  - JOUR
AU  - Roberto Camporesi
AU  - Antonio J. Di Scala
TI  - A generalization of a theorem of Mammana
JO  - Colloquium Mathematicum
PY  - 2011
SP  - 215
EP  - 223
VL  - 122
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm122-2-6/
DO  - 10.4064/cm122-2-6
LA  - en
ID  - 10_4064_cm122_2_6
ER  -