http://www.dagstuhl.de/dagpub/978-3-95977-003-3
In the series Dagstuhl Follow-Ups we have published a new book entitled "The Constraint Satisfaction Problem: Complexity and Approximability". The book was edited by Andrei Krokhin and Stanislav Živný.
The book is online available at: http://www.dagstuhl.de/dagpub/978-3-95977-003-3.
The authors of the individual chapters are participants from Dagstuhl Seminar 15301.