Last week, The New York Times' travel section offered a tip to other explorers about how to visit Karabakh and still be able to hop over to Azerbaijani-controlled territory later -- namely, just “ask for the visa to be put on a separate piece of paper that can be removed from your passport.”
The trick is hardly a secret. And one that prudent visitors quickly learn, with or without a how-to in the American "newspaper of record."