In spite of their differences, written and oral language don't differ too much in deixis, I think. Deixis is not only concerned with quotes. It refers to the extralinguistic world: yesterday, tomorrow, he, she...These are different categories (adverbs, pronouns...) but they have this propriety in common. Anafora and Catafora refer to precedent and previous speech, respectively, thus, a link to deixis can be seen.
Sorry for the mistakes, it's difficult to explain such a thing in English (I'm Spaniard) but I hope to have shed some light in this issue.
Best regards.
María José Barrios (Spain)
I will give you an answer about deictic pronouns, the deictic pronounsIandyourefer to the speaker and the addressee, respectively. I'm not sure what you mean by "written examples" though, so maybe this is not what you are looking for. – KleinePrins Feb 25 at 16:33