Here is a source:
http://hbd.org/ajdelange/Brewing_articles/BT_Chlorine.pdf
It lists a half life of 26 minutes. It's typical to think of the removal of something taking 5 half-lives or 130 minutes. It is not considered an adequate way to remove chloramine. Campden tablets, on the other hand, are extremely cheap and take less than 5 minutes to remove chloramines.
Sorry I can't read your document. Too scientific. LOL... But maybe because your source is from 1998, it could be outdated?
But here's my source: http://www.sfwater.org/modules/showdocument.aspx?documentid=957
It lists a few ways of getting rid of chloramine.
It's an interesting read actually...
(sorry if I double posted; sorry to hijack this post)