Algebraic & Geometric Topology Volume 4 (2004)

A J BENE, Relations in the tautological ring derived from combinatorial classes and hyperelliptic fatgraphs, Mathematical Proceedings of the Cambridge Philosophical Society 144 (2008)

K Igusa, M Kleber, Increasing trees and Kontsevich cycles, Geometry & Topology 8 (2004) 969

S MORITA, R C PENNER, Torelli groups, extended Johnson homomorphisms, and new cycles on the moduli space of curves, Mathematical Proceedings of the Cambridge Philosophical Society 144 (2008)

R C Penner, The structure and singularities of quotient arc complexes, Journal of Topology 1 (2008) 527