TY  - JOUR 
T1  - Communication and Language in Niklas Luhmann's Systems-Theory
JO  - Pandaemonium Germanicum
A1  - Maurer, Kathrin
SN  - 1982-8837
UL  - 10.1590/S1982-88372010000200002
VL  -  
Y1  - 2010
PB  - Brasil 
ER  -