TY  - JOUR 
T1  - Rigorous results for aperiodic and almost periodic substitution sequences
JO  - Brazilian Journal of Physics
A1  - Pinho, S. T. R.
A1  - Lobão, T. C. Petit
SN  - 0103-9733
UL  - 10.1590/S0103-97332000000400026
VL  - 30 
Y1  - 2000
PB  - Brasil 
ER  -