Higher-order subtyping /
Steffen, Martin.
Pierce, Benjamin C.
University of Edinburgh.Laboratory for Foundations of Computer Science.
Friedrich-Alexander-Universität Erlangen-Nürnberg.
Edinburgh : LFCS, Dept. of Computer Science, University of Edinburgh,
1994.
Caption title.
Includes bibliographical references.
Lambda calculus.
Object-oriented programming (Computer science)