Pinker, Steven: The language instinct: how the mind creates language. New York 2007. Internet: https://books.google.de/books?id=UtFqXQosVP0C&printsec=frontcover&dq=The+Language+Instinct.&hl=en&sa=X&ved=0ahUKEwiFt4KLrJzTAhVDrxoKHZAICgYQ6AEIIjAA#v=onepage&q=The%20Language%20Instinct.&f=false. Zuletzt geprüft am: 11.4.2017.