Representations in SU(2) of the fundamental groups of the Whitehead link and of doubled knots. Eric P. Klassen — 1993 Forum mathematicum
Gauge theoretic invariants of Dehn surgeries on knots. Boden, Hans U.; Herald, Christopher M.; Kirk, Paul A.; Klassen, Eric P. — 2001 Geometry & Topology
Chern-Simons invariants of 3-manifolds and representation spaces of knot groups. Paul A. Kirk; Eric P. Klassen — 1990 Mathematische Annalen