TY  - BOOK
AU  - Smith,Graham
AU  - Jefferies,Keith
AU  - Ryoo,Hyun-Jung
TI  - African stock markets: multiple variance ratio tests of random walks 
T2  - Working paper series / Department of Economics, School of Oriental and African Studies, University of London
PY  - 2000///
CY  - London
PB  - University of London
KW  - Stock exchanges
KW  - Africa
N1  - References : p. 19-21
ER  -