added (finally) the book chapter on the GMB
added (finally) the book chapter on the GMB

valeriobasile/valeriobasile.github.io,valeriobasile/valeriobasile.github.io,valeriobasile/valeriobasile.github.io,valeriobasile/valeriobasile.github.io,valeriobasile/valeriobasile.github.io