By Prömel H.J.   in Synthese

ISSN:0039-7857|133|1-2|87-105

Springer Publishing Company ‎(2002)‎

Access to resources Favorite 20.929987

By Prömel H.J.   Steger A.   in Journal of Algorithms

ISSN:0196-6774|36|1|89-101

Academic Press‎(2000)‎

Access to resources Favorite 19.730236