1) What is the maximum number of authors per paper?
Each paper can have a maximum of four authors.
2) What is the maximum number of papers that can be sent by author?
Each author may send a maximum of three papers, one paper being the first author and two other papers as coauthor.
3) Should all authors pay the registration fee for the publication of papers in the Colloquium?
No. For the publication of the papers in the Colloquium, at least one of the authors must pay the registration.