Electronic/World Wide Web>Internet Article:  Lethem, Jonathan (February 2007), The Ecstasy of Influence, A plagiarism, Harpers, Retrieved on 2015-02-19

Source Material [harpers.org]

Proceedings of Meetings and Symposia>Speech:  Benjamin, Arthur (June 2013), The magic of Fibonacci numbers, Ted Talks, Retrieved on 2013-11-27

Source Material [www.ted.com]