Oracle8i to 10g upgrade using exp and imp

Hi
 
I would like to know any metalink note or Oracle documentation link which 
spells out that i can do exp full=y on 8i database and imp full=y into 10g 
database.
 
I searched this but unable to locate that this is a a supported method for 
upgrading from 8i to 10g
 
regards
Hrishy

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