algorithm used for i.cluster

I am a student checking out the comparative accuracy of supervised and
unsupervised classification in Indian forests, and ave been using
i.cluster for this. I have some questions about what algorithm is used for
this, and was looking through the Users and Programmers manual, but full
details aren't given. The Users manual states that this was developed by
Michael Shapiro of CERL and Tao Wen of the Univ. of Illinois at
Urbana-Champaign wrote this program, and the Grass Beginners Manual says
that Katarina Johnsson, Michael Shapiro, Hong Zhuang or Peter Sincak can
be contacted for more information on this - it gives phone no.s, but being
in India, I can't call these numbers.

I would be most grateful if anyone could provide me with emails of any of
these people, so that I can contact them for more information about the
exact algorithm used.

Harini,

Some of these people may have left CERL. You might contact Scott Tweddale
who is CERL's remote sensing specialist with your question or a pointer
to the present location of these people. His email is:
s-tweddale@cecer.army.mil

You can also visit CERL's home page for general information.
http://www.cecer.army.mil

Good luck.

Ishmael Williams
US Army Corps of Engineers
Fort Worth District
Fort Worth, Texas
email: ish@alla.pl.swf.usace.army.mil