Pointers in Haskell??

[Bryan Hayes (Hayes Technologies)]

I am totally new to Haskell, so maybe this is a stupid question.
Various languages have pointers (or references), for good reason.
Haskell can at least partly do without them (they are only existing internally somehow).
My question is: Does Haskell principally not need pointers (i.e. in case of 2 data structures needing to reference an other very
large data structure) or is this a design flaw or have a overlooked something?

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