http://www.ma.utexas.edu/cgi-bin/mps?src=a&key=koch

ftp://ftp.ma.utexas.edu/pub/papers/koch/

Hans Koch, A Renormalization Group Fixed Point Associated with the Breakup of Golden Invariant Tori (6094K, plain TeX) Apr 9, 02

Juan J. Abad, Hans Koch, Peter Wittwer, Renormalization group analysis of Hamiltonian flows (27K, amstex) Sep 11, 00 

Hans Koch, On the Renormalization of Hamiltonian Flows, and Critical Invariant Tori (54K, plain TeX) May 25, 01

Hans Koch, Existence of Critical Invariant Tori (6121K, plain TeX, Section.6.tgz) Jul 12, 04

Denis Gaidashev, Hans Koch, Renormalization and Shearless Invariant Tori: Numerical Results (272K, plain TeX, two PS figures, data7_7_9.tgz) Dec 16, 03

Hans Koch, A Renormalization Group for Hamiltonians, with Applications to KAM Tori (163K, plain TeX) Aug 22, 96