July 4th, 2006, 8:00 am
The paper you are after is "The Pricing of Commodity Contracts", Journal of Financial Economics, 3 (March 1976), p167-79.I suspect you won't find it easily on the internet, but it is in some "classic papers" books that are on amazon (you might even be able to 'search inside' one).Alternatively, if you just want to understand it, Hull has a section on it "Black's Model for Valuing Futures Options".