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Spice was originally written at The University of California at Berkeley (USA).
Since then, there have been many people working on the software, most of them
releasing patches to the original code through the Internet. 


The following people have contributed in some way:

@verbatim
Vera Albrecht <albrecht@danalyse.de>,
Cecil Aswell <aswell@netcom.com>,
Steven Borley <steven.borley@virgin.net>,
Stuart Brorson <sdb@cloud9.net>,
Giles C. Billingsley,
Mansun Chan,
Wayne A. Christopher,
Al Davis <aldavis@ieee.org>,
Glao S. Dezai <dezai@hotbot.com>,
Jon Engelbert <jon@beigebag.com>,
Daniele Foci <d.foci@ieee.ing.uniroma1.it>,
Noah Friedman <friedman@prep.ai.mit.edu>,
Alan Gillespie <Alan.Gillespie@analog.com>,
David A. Gates,
JianHui Huang,
Jeffrey M. Hsu,
S. Hwang,
Chris Inbody <cinbody@cowtown.net>,
Gordon M. Jacobs,
Min-Chie Jeng,
Stefan Jones <stefan.jones@multigig.com>,
Beorn Johnson <beorn@eecs.berkeley.edu>,
Kenneth H. Keller,
Mathew Lew,
Robert Lindsell <robertl@research.canon.com.au>,
Weidong Liu,
Kartikeya Mayaram,
Richard D. McRoberts <rdm@csn.net>,
Manfred Metzger <ManfredMetzger@gmx.de>,  
Paolo Nenzi <pnenzi@ieee.org>,
Gary W. Ng,
Wolfgang Muees,
Hong June Park,
Arno Peters <A.W.Peters@ieee.org>,
Serban-Mihai Popescu <serbanp@ix.netcom.com>,
Georg Post <georg.post@wanadoo.fr>,
Thomas L. Quarles,
Emmanuel Rouat <emmanuel.rouat@wanadoo.fr>,
Jean-Marc Routure <routoure@greyc.ismra.fr>,
Jaijeet S. Roychowdhury,
Takayasu Sakurai,
AMAKAWA Shuhei <sa264@cam.ac.uk>,
Kanwar Jit Singh,
Hitoshi Tanaka <HDA01055@nifty.com>,
Steve Tell <tell@cs.unc.edu>,
Andrew Tuckey <Tuckey@ieee.org>,
Charles D.H. Williams <C.D.H.Williams@exeter.ac.uk>,
Holger Vogt <holger.vogt@uni-duisburg.de>,
Dietmar Warning <warning@danalyse.de>,
Michael Widlok <widlok@uci.agh.edu.pl>,
Antony Wilson <wilsona@earthlink.net>,
and many others...
@end verbatim

If someone helped in the development and has not been inserted in this list
then this omission was unintentional. If you feel you should be on this list
then please write to <ngspice-devel@@lists.sourceforge.net>. Do not be shy, we
would like to make a list as complete as possible.