TY  - BOOK
A1  - Kemper, Susan
A1  - Kliegl, Reinhold
T1  - Constraints on language : aging, grammar, and memory
Y1  - 1999
PB  - Kluwer
CY  - Boston
ER  - 
TY  - JOUR
A1  - Kliegl, Reinhold
A1  - Kemper, Susan
T1  - Concluding observations
Y1  - 1999
SN  - 0-7923-8526-8
ER  -