Honour where honour is due: I've got some questions about inversion lists. Where I saw them mentioned by that name were some drafts of this:
http://www.aw.com/catalog/academic/product/1,4096,0201700522,00.html The book looks really promising-- unfortunately it's not yet published. -- $jhi++; # http://www.iki.fi/jhi/ # There is this special biologist word we use for 'stable'. # It is 'dead'. -- Jack Cohen
