I am very much aware that this bibliography must be incomplete, as it contains hardly any references to research outside UK, USA and New Zealand, and in particular very little on languages other than English. Given that some kind of formal grammar seems to be taught in most school systems outside the Anglo-Saxon world (Hudson 1998), and given that it is usually taught for the sake of its effects on writing, there must (one would think) be some research on its effectiveness. This bibliography is meant to grow, so I welcome suggestions for addition or correction.