teaching "a prima vista"

[qjamanka]

Hello!
I'm new here.
I'm piano teacher from Poland.
I'm looking for informations about teaching students playing "a vista". maybe you know some publications or sites about it. or maybe you have some experiences about it.it would be very helpful. I'd like to write my Master Degree about this topic but it's hard to find any material on this.
Thank you for your help.
karolina