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August 2006,
Bert and Wim
within the walls of
Rothenburg
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July 2006,
Kenai Peninsula,
Alaska.
Piet and Wim
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May 2006,
Madison,
Bascom Mall near
Van Vleck Hall,
before the tree was cut.
Dan McGinn, Wim, Jon Fleischmann, Itai Ben-Yaacov
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November 2005,
Algebra I.
Back: Jessica Alstad, Kevin Voge, Wim, Rebecca Kohler, Matthew Harmon.
Front: Ashley Guralski, Sarah Woelfel
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August 2005,
Moddergat,
Dongeradeel,
Friesland.
Hanna, Bram,
Joke, Chris,
and Wim
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July 2005,
Tegelen.
Ivo, Gerrit,
Anneke and Robert
Kalkman. And Wim
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June 2005
UW Madison
Bill Rolli, Wim,
and Rebecca Sanders
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May 2005,
Wim with
Raymond Mess,
Keith Kruepke,
and Paul Cernick
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March 2005
ASL, Stanford
Creekside Inn
Dan Willard, Leona Fass,
Wim, Paul Bankston
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November 2004
Haleakala
At Ka Lu'u o ka 'O'o crater
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June 2004
Wim and Piet.
Jan and Jannie Struik.
Bangert, Medemblik
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June 2004,
Swalmen,
Leo, Marieke, Inge,
Wim, Helmy, Bert
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June 2004
Residuated Structures
Rion-Patras
?, ?, ?, Peter Jipsen,
Annika Wille,
Mohammad Ardeshir,
Wim Ruitenburg
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May 2004
With Yu Fan and
Stanley Makalew
on the patio
of Cudahy Hall
(picture by Ru Sheng)
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November 2003
Piet and Wim
between Joke and Chris
Berend Botje Tentoonstelling
Groningen
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November 2003
Halleyweg, Dordrecht
Back: Aunt Ad, cousin Marja van der Linden, me
Front: Aunt Stien and aunt Rie
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August 2003
LC 2003 in Helsinki
On the Esplanade
Saeed Salehi
Wim Ruitenburg
Albert Visser
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April 2003
Wim Blok
Francis Pastijn
Peter Jones
Wim Ruitenburg in front
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December 2002
TA and RA group:
Xiaoke Bi
Ranjini Kampurath (Girish)
Dan Pryor
Jeremy Vosters
Sangeeta Nelson
Cathy Lie
Jagadeesh Yeturi, Qi Zheng (Angela)
Zach Buelow, Stanley Makalew, Wim Ruitenburg
Amit Arora, Sheng Wang
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October 2002,
Aartswoud.
Nephew Bert, Else Blaschke, Wim, Geertje, Tjerk.
In front of the (farm) house
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October 2002
Paul Bankston's
momentary rule of the
Math office
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March 2002
Jaime's birthday.
Beth Roucek,
Jaime Piekarski, and
friend Linda
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September 2001
State Street, Madison.
Hua Wei Ruan, Hang Liu,
Craig Struble, me,
Cara Struble, Lingtao Zeng
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June 2001
Birthday party, Ruinen
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Commencement, May 2001
Chaohua Wang shakes hands with Bob Wild
Cynthia (Yan Cui) also graduates
(Picture by Dan Johnson)
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Thanksgiving 2000
stop at Holy Hill,
with Lingtao Zeng
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November 2000
Teaching and Learning
with Lilly Moeller,
Lingtao Zeng,
and Haiqing Zhang
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January 2000
Thomas Pastijn and
Amanda Mickelson
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August 1999
Logic Colloquium Utrecht
with Saeed Salehi
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August 1997
100m over Utrecht
On the Domtoren
Bert, Piet, Wim
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More July 1997
Canoeing with
Qiang Ma, Chunyi Song,
me and others
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July 1997
Canoeing with
Mike and Tim Slattery,
Tanya Ershova and brother,
others
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Noordzij family
plus Erwin Kerssenberg,
December 1996
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May 1996
Pi Mu Epsilon
Math Honors Society
Eric Olson, Sheila Ross
Ryan Kasprzak, Clarisa De Franco
Keith Kruepke
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Marquette Computer
Society, Spring 1996
Tania McCall (co-chair),
Matt Brumbaugh (treasurer),
Anurup Joseph (president),
Joe Carpenter (co-chair),
Mike Bilenkis (marketing/publicity director),
Paul Tambornino (vice-president).
Not shown: Robb Dubinski (secretary)
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May 1995
Azadeh, Fattaneh,
Mohammad Ardeshir
Sorry, no Shervin
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October 1994
Halloween with
Shirin Nageli, ?,
?, Prasith Baccam,
Tanya Ershova
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March (?) 1994
Koningsplein Amsterdam,
Don Pedro and his Posse
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May 1993
Waddenzee, near
Kornwerderzand
Fishing with Piet's
ABN-AMRO team
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August (?) 1991,
Hakfort, Amsterdam.
Algorithms in Algebra,
A First Course.
Coauthor Bert
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Amsterdam 1991 (?),
nieces and nephews
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August 1990
With John Simms
in a Kyoto restaurant
(Picture by Iseki)
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August 1988
P.C. Ruitenburg
with Lambiek
at Ruinerdijk
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1986
D. Ruitenburg
and Laura
at the organ,
Ruinen
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January 1986
New Orleans
Elbert and Carol Walker,
me,
Barry MacKichan
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June 1985
Medemblik
Piet Ruitenburg,
son Cor,
grandson Bert,
greatgrandson Tjerk
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March 1985
Wim Ruitenburg
and Milwaukee
Police Chief
Robert Ziarnik
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Spring 1984
Across the border
in Juarez
(picture by Bill Julian)
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December 1983
My last
family Christmas
in Utrecht
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May 1983
Las Cruces, NM
Co-authors
Ray Mines,
Wim Ruitenburg,
Fred Richman
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8 June 1982
Academiegebouw
Domplein, Utrecht
A. van der Sluis
J.R. Strooker
E.M.J. Bertin
A.F. Monna
D. Siersma
D. van Dalen
A.S. Troelstra
T.A. Springer
H.P. Barendregt
(F.D. Veldkamp and F. Oort invisible)
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1642
family portrait
(Nachtwacht, Rembrandt)
Frans Banning Cocq and
Willem van Ruytenburch
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