In case of co-authorship, the names of the participants are separated by; . For example: Assoc. Prof. Dr. Ivan Ivanov; Assoc. Prof. Dr. Petko Petkov.
Only the correspondence author's e-mail address is written.
Only the correspondence author's phone number is written.
Only the correspondence author's post address is written.
In case of co-authorship, the names of the institutions are separated by; in the order in which the names of the participants are written.