[OS X TeX] Change the style of references

[Niels Kobschaetzki]

Hi!

When I cite I'm using \cite[some content like page-numbers of the  
cited book]{cite-key} and then it appears as "(Author, Year, content  
of [])".
But my lecturers want to have it in a style like "(Author Year:  
content of [])"

Where and how can I change the behaviour of \cite -- google didn't  
really help or I just do not know the right terms to search with.

Any help appreciated

Niels

--
Marty: [looking at the cloth] It's a key!
Jack Sparrow: No! Much more better. It is a drawing of a key.  
Gentlemen, what do keys do?
-- Pirates of the Carribean: Dead Man's Chest


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