Contract modification, Iowa-Recker v. Gustafson, Preexisting duty doctrine, Austin Instrument, Inc. v. Loral Corp.
Hillman, Robert A., "Contract Modification in Iowa-Recker v. Gustafson and the Resurrection of the Preexisting Duty Doctrine" (1980). Cornell Law Faculty Publications. Paper 557.
Published in: Iowa Law Review, vol. 65, no. 2 (January 1980).