A document retrieval device for retrieving a second document in response to first indicating data received from a sensing device. The first interactive document has a corresponding page description stored in one of a plurality of servers. The device is configured to receive the first indicating data; determine a network address of a server handling the page description corresponding to the first interactive document; send second indicating data to the network address identified using the page identity; receive response data corresponding to the second document; and provide the second document to a user.