All publications are available either as a link or as a download.
The book “GUI utilities for Dyalog/W”, which was published in 2002, was about GUI utilities offered by APL Team GmbH, the consultancy I ran in Germany at the time.
I publish frequently on Vector:
The software was available under an Open Source license. These modules became obsolete in 2008, although the software was maintained until 2010-12-31.