Articles on Cryptography

• A Homophonic Substitution in the Archives of the Last Great Pensionary of Holland
  Karl de Leeuw and Hans van der Meer
  Cryptologia vol.XVII (1993) nr.3, p.225-236.
• Een roostergeheimschrift van Alexander Baron Van Spaen (1775-1811) [in dutch]
  Karl de Leeuw en Hans van der Meer
  Documentatieblad Werkgroep Achttiende Eeuw vol.25 (1993) nr.2, 187-210.
• A Turning Grille from the Ancestral Castle of the Dutch Stadtholders
  Karl de Leeuw and Hans van der Meer
  Cryptologia vol.XIX (1995) nr.2, p.153-165.
• An Old Challenge or Keys to the Fuer GOD
  In the First World War the American cryptanalyst J. Rives Childs solved the keys of a German cipher
  used for communication with agents in North Africa. It is called the Wilhelm cipher and otherwise
  known as the FuerGOD, after the call sign of the agents station.

Articles on TeX

• Random Bit Generator in TeX
  Hans van der Meer
  TUGboat vol.15 (1994) nr.1, p.57-58.
  implementation (the sty file below)
• Random bit generator in TeX
  Hans van der Meer
  NTG MAPS Nummer 34, najaar 2006, 65-67.
  In Dutch.
• Exam Papers, Posing Questions To Students
  Hans van der Meer
  NTG MAPS Nummer 36, voorjaar 2008, 33-38.
  
• Blocks and Arrows with Metapost
  Hans van der Meer
  NTG MAPS Nummer 36, voorjaar 2008, 85-89.
  
• CD and DVD Covers in ConTeXt
  Hans van der Meer
  NTG MAPS Nummer 37, najaar 2008, 48-54.
  
• Exam Papers Revisited
  Hans van der Meer
  NTG MAPS to be published.
  
• A bit of HTML and a bit of ConTeXt
  Hans van der Meer
  NTG MAPS to be published.
  
• Yet Another Table
  Hans van der Meer
  NTG MAPS to be published.
  

Lua modules and programs

• Bitmap, Arraylist, Linkedlist, Heap, Queue and Stack
• Zipping strings
• Transparent IO from file, memory or zipped file
• An Expat binding and XML operations, incomplete implementation
• Documentation 

Here lua-teletext.zip are programs for the extraction of Teletext subtitles from DVB transport streams.

ConTeXt source

dvd case macros

hvdm-cas.tex    

table macros

hvdm-tbx.tex    

color macros

hvdm-clr.tex    

basic xml macros

hvdm-xml.tex    

lua-context helper functions

hvdm-lua.tex    

cd-dvd xml typesetter

hvdm-dvd.tex    

exam xml formatter

hvdm-xam.tex    

Metapost source

blocks and arrows macros

hvdm.mp    

Deprecated source

random generator

hvdm-rng.tex    

list processor

hvdm-lst.tex    

exam.cls = class for typesetting of exams.

exam.dtx
exam.ins

version 3.28, dated 1996/08/28; also available from CTAN (vs 3.25); use at your own risk

slidenotes.cls = class for typesetting of annotated slides.

slidenotes.dtx
slidenotes.ins

version 3.20, dated 1996/08/28; also available from CTAN (vs.3.13); use at your own risk

cropmarks.sty = package for cropmarks around page.

cropmarks.sty

version 1.2; use at your own risk

headfoot.sty = package for headers and footers.

headfoot.sty

version 2.3; use at your own risk

pageup.sty = package for multiple pages, derived from 2up.sty.

pageup.sty

version 3.0; use at your own risk

random.sty = package for random numbers.

random.sty

version 2.4; use at your own risk
documentation (the Tugboat article above)