Samuelson, Paul A., and Robert C. Merton. “A Complete Model of Warrant Pricing that Maximizes Utility.” Industrial Management Review 10 (winter 1969): 17-46. (Chapter IV of Ph.D. dissertation; Chapter 7 in Continuous-Time Finance.)
Merton, Robert C. "An Empirical Investigation of the Samuelson Rational Warrant Pricing Theory." 1969 (Chapter V in Ph.D. dissertation; Class paper, Massachusetts Institute of Technology, spring 1969.)
Merton, Robert C. "Restrictions on Rational Option Pricing: A Set of Arbitrage Conditions." Massachusetts Institute of Technology, 1968. Mimeo.
Merton, Robert C. "The 'Motionless' Motion of Swift's Flying Island." Journal of the History of Ideas 27 (April-June 1966): 275-277