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1

A exception may be, that the chair make a personal exception or something, but that's only by circumventing the normal process.

2

Note further, that unlike as in previous versions, no extra table Roles is used, everyone works with the numarical representation.

3

In real life, of course, all are authors, but on the model, one particular author is singled out, and the others, if any, are called coauthors of the paper.

4

A typical reason for ``unwillingness'' is that the reviewer is a friend or collegue of the author and thinks he cannot judge the paper without bias.