Kohler, Robert E.: Lords of the fly: Drosophila genetics and the experimental life. Chicago 1994. Internet: https://books.google.de/books?id=J57ht8TPP74C&printsec=frontcover&dq=Lord+of+the+Flies.+Drosophila+Genetics+and+the+Experimental+Life.&hl=de&sa=X&ved=0ahUKEwj-_KmI-tPTAhWFtxQKHfwkDlYQ6AEIKTAA#v=onepage&q&f=false.