http://www.electro-gn.com/article-immers
I scanned it via the Google Translate version, but of course that is prone to huge misunderstandings.
The funny part is that the last section is titled "Kim 1 - Pohjola / Bockman 0." From what I can tell, he is referring that Bockman's adaptation of the Threefold Model for Scandanavian larp, where he substituted "Immersionism" instead of "Simulationism". Choupat seems to think that this was mistaken, in that while he accepts the Threefold Model divisions as useful, he feels that immersion can be a part of any of those styles - just different kinds of immersion.
I have been wondering for a while about what to say about the Threefold Model. I still think it was a good idea at the time, and I have the feeling that I should be moving past it to more nuanced distinctions. Still, it seems to stick around.