Armenian Massacres in Ottoman Turkey, A Disputed Genocide, is discussed in this interview with Prof. Guenter Lewy. Here he explains his view of what is considered a genocide and why the Armenian killings do not amount to genocide.
Prof. Guenter Lewy
Guenter Lewy (born August 22, 1923) is a German-born American author and political scientist who is a professor emeritus of Political Science at the University of Massachusetts Amherst. His works span several topics, but he is most often associated with his 1978 book on the Vietnam War, America in Vietnam, and several controversial works that deal with the applicability of the term genocide to various historical events.
( Taken from Wikipedia)