History
The workshop alternates between the Nordic and Baltic countries. It started out as The Nordic Workshop on Program Correctness (NWPC). In 1993 the name was changed to The Nordic Workshop on Programming Theory (NWPT), reflecting the broadened scope of the workshop.
 NWPC '89: Uppsala, Sweden

NWPC '90: Aalborg, Denmark, 35 October 1990
Proceedings: Internal Report IR 9005, Dept. of Computer Science, Aalborg Univ., 1990  NWPC '91: Göteborg, Sweden

NWPC '92: Bergen, Norway, 24 November 1992
Selected Papers: Reports in Informatics No. 78, Univ. of Bergen, 1993 
NWPC '93: Turku, Finland, 2528 October 1993
Proceedings: Reports on computer science & mathematics, Ser. B, No. 18, Åbo Akademi, 1994 
NWPT '94: Aarhus, Denmark, 1719 October 1994
Proceedings (unrefereed): BRICS Notes Series NS946, Aarhus Univ., 1994 
NWPT '95: Göteborg, Sweden, 13 November 1995
Proceedings (unrefereed): Programming Methodology Group Report No. 86, Univ. of Göteborg and Chalmers Univ. of Techn., 1996 
NWPT '96: Oslo, Norway, 46 December 1996
Selected Papers: Research Report No. 248, Dept. of Informatics, Univ. of Oslo, 1997 
NWPT '97: Tallinn, Estonia, 1517 October 1997
Selected Papers: Proc. of Estonian Acad. of Sci.: Engineering, v. 4, n. 2, 1998, and Proc. of Estonian Acad. of Sci.: Physics, Mathematics, v. 47, n. 3, 1998 
NWPT '98: Turku, Finland, 1416 October 1998
Selected Papers: Nordic J. of Computing, v. 6, n. 3, 1999 
NWPT '99: Uppsala, Sweden, 68 October 1999
Selected Papers: Nordic J. of Computing, v. 8, n. 1, 2001 
NWPT '00: Bergen, Norway, 1113 October 2000
Selected Papers: Nordic J. of Computing, v. 8, n. 3, 2001 
NWPT '01: Lyngby, Denmark, 1012 October 2001
Selected Papers: Nordic J. of Computing, v. 9, n. 4, 2002 
NWPT '02: Tallinn, Estonia, 2022 November 2002
Selected Papers: Nordic J. of Computing v. 10, n. 4, 2003, and Proc. of Estonian Acad. of Sci.: Physics, Mathematics, v. 52, n. 4, 2003 
NWPT '03: Turku, Finland, 2931 October 2003
Selected Papers: Nordic J. of Computing, v. 11, n. 2, 2004 
NWPT '04: Uppsala, Sweden, 68 October 2004
Selected Papers: Nordic J. of Computing, v. 12, n. 2, 2005 
NWPT '05: Copenhagen, Denmark, 1921 October 2005
Selected Papers: Nordic J. of Computing, v. 13, n. 12, 2006 
NWPT '06: Reykjavík, Iceland, 1820 October 2006
Selected Papers: J. of Logic and Algebraic Program., v. 77, n. 12, 2008 
NWPT '07: Oslo, Norway, 1012 October 2007
Selected Papers: J. of Logic and Algebraic Program., v. 78, n. 7, 2009 
NWPT '08: Tallinn, Estonia, 1921 Nov. 2008
Selected Papers: J. of Logic and Algebraic Program., v. 79, n. 7, 2010 
NWPT '09: Lyngby, Denmark, 1416 Oct. 2009
Selected Papers: J. of Logic and Algebraic Program., v. 81, n. 4, 2012 
NWPT '10: Turku, 2010: Turku, Finland, 1012 Nov. 2010
Selected Papers: J. of Logic and Algebraic Program., v. 81, n. 3, 2012 
NWPT '11: Västeras, Sweden, 2628 Oct. 2011
Selected Papers: J. of Logic and Algebraic Program., v. xx, n. x, xxxx (TBP)
(Based on an earlier version, source http://www.mrtc.mdh.se/nwpt2011/index.php?choice=history)