During the summer I've sent some colaborations to the Castilla la Mancha Basketball Coaches' Association. I've written about zone offense for youth teams.
I've always been interested in these concepts, as many people ask me about it, and also because of the controversy about playing zone defenses with kids.
You can download the first one of the articles "Conceptos de ataque a zona para edades de formación" here
(By the way, it's in Spanish, so you can work on your "español" my friends)