TY  - JOUR 
T1  - Strings in flat space and plane waves from N = 4 super Yang Mills
JO  - Brazilian Journal of Physics
A1  - Maldacena, Juan
SN  - 0103-9733
UL  - 10.1590/S0103-97332004000200002
VL  - 34 
Y1  - 2004
PB  - Brasil 
ER  -