The Encyclopedia of Mathematics (also EOM and formerly Encyclopaedia of Mathematics) is a large reference work in mathematics. It is available in book form and on CD-ROM. 

The 2002 version contains more than 8,000 entries covering most areas of mathematics at a graduate level, and the presentation is technical in nature. The encyclopedia is edited by Michiel Hazewinkel and was published by Kluwer Academic Publishers until 2003, when Kluwer became part of Springer. The CD-ROM contains animations and three-dimensional objects. 

The encyclopedia has been translated from the Soviet "Matematicheskaya entsiklopediya" (1977) originally edited by Ivan Matveevich Vinogradov and extended with comments and three supplements adding several thousand articles. 

Until November 29, 2011, a static version of the encyclopedia could be browsed online free of charge online This URL now redirects to the new wiki incarnation of the EOM. 

A new dynamic version of the encyclopedia is now available as a public wiki online. This new wiki is a collaboration between Springer and the European Mathematical Society. This new version of the encyclopedia includes the entire contents of the previous online version, but all entries can now be publicly updated to include the newest advancements in mathematics. All entries will be monitored for content accuracy by members of an editorial board selected by the European Mathematical Society.
What EOM stands for?
What is it?
In how many formats it is available?
What are they?
Was a static version available?
Was it discontinued?
When?
Was it free?
What is the new version now?
How many organizations work together to make it possible?
What are they?
Can this be edited by public?
How many entries were there in 2002?
Is the presentation technical?
Who was the editor?
And publisher?
Until when?
Then what organizational change happened?
What the CD contains?
Who select the editorial board?
Encyclopedia of Mathematics
The Encyclopedia of Mathematics (also EOM and formerly Encyclopaedia of Mathematics) is
a reference work in mathematics.
The Encyclopedia of Mathematics (also EOM and formerly Encyclopaedia of Mathematics) is a large reference work in mathematics. 
Two
 It is available in book form and on CD-ROM. 
book and CD-RoM
 It is available in book form and on CD-ROM. 
yes
It is available in book form and on CD-ROM. 

yes
Until November 29, 2011, a static version of the encyclopedia could be browsed online free of charge online This URL now redirects to the new wiki incarnation of the EOM. 

A new dynamic version of the encyclopedia is now available as a public wiki online. T
November 29, 2011
Until November 29, 2011, a static version of the encyclopedia could be browsed online free of charge online 
yes
Until November 29, 2011, a static version of the encyclopedia could be browsed online free of charge online 
a public wiki online.
A new dynamic version of the encyclopedia is now available as a public wiki online. 
Two
 This new wiki is a collaboration between Springer and the European Mathematical Society. 
Springer and the European Mathematical Society.
This new wiki is a collaboration between Springer and the European Mathematical Society. 
yes
all entries can now be publicly updated t
more than 8,000
The 2002 version contains more than 8,000 entries 
yes
 the presentation is technical in nature.
Michiel Hazewinkel
The encyclopedia is edited by Michiel Hazewinkel 
Kluwer Academic Publishers
was published by Kluwer Academic Publishers until 2003
2003
was published by Kluwer Academic Publishers until 2003
Kluwer became part of Springer
until 2003, when Kluwer became part of Springer. 
animations and three-dimensional objects
The CD-ROM contains animations and three-dimensional objects. 
the European Mathematical Society.
an editorial board selected by the European Mathematical Society.