{HEAD ~ a subscription mechanism} configured to send {TAIL ~ a subscription message} containing said information file specification to a notification mechanism included within an information provider apparatus comprising a server computer executing a server application 
{ HEAD ~ a subscription mechanism } configured to send { TAIL ~ a subscription message } containing said information file specification to a notification mechanism included within an information provider apparatus comprising a server computer executing a server application
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH