APA
Bollerslev T., Ghysels Eric, . (1994). Periodic Autoregressive Conditional Heteroskedasticity. Montreal: Universite De Montreal.
Chicago
Bollerslev Tim, Ghysels Eric, . 1994. Periodic Autoregressive Conditional Heteroskedasticity. Montreal: Universite De Montreal.
Harvard
Bollerslev T., Ghysels Eric, . (1994). Periodic Autoregressive Conditional Heteroskedasticity. Montreal: Universite De Montreal.
MLA
Bollerslev Tim, Ghysels Eric, . Periodic Autoregressive Conditional Heteroskedasticity. Montreal: Universite De Montreal. 1994.