In fact this is the real reason of my question!! In Italy we have this "strange" procedure, not ICAO approved, only in LIRF and LIMC, but ATCOs are not so satisfied to apply it, because a lot of companies don't know this kind of procedure, and because it could cause some misunderstandings about the REAL responsible in case of two acfts landed on the same runway. When I tried to use land after just saying "land after the b737", a lot of pilots answered me "cleared to land after...", and I don't like so much....