Colibri Conference Manager

In order to select papers that will be published in a scientific conference, normally two steps are needed.
First of all, an automated system for paper submissions by the authors must be put online, then a way to distribute papers to reviewers and to collect their reviews should be found.
The submissions management system should accept new submissions and give to the author(s) the way to manage them (modifying something or withdrawing them) as long as submissions are open, and to track them when they are under review (i.e. to know their status).
The review management system should offer an easy way to add Program Commettee members to the system, to distribute papers to them with some load balancing kept in mind (but not always automatization helps in this case), to collect their reviews an