Lambda, the Ultimate Label or a Simple Optimizing Compiler for Scheme. - William D. Clinger; Lars Thomas Hansen (LISP and Functional Programming, 1994)

Generational Garbage Collection and the Radioactive Decay Model. - William D. Clinger; Lars Thomas Hansen (PLDI, 1997)

An experimental study of renewal-older-first garbage collection. - Lars Thomas Hansen; William D. Clinger (ICFP, 2002)