Papers and Preprints
  1. "On Dehn functions of amalgamations and strongly undistorted subgroups"
    with Jon Corson, Int J of Alg and Comp., vol 10, no. 5, pp. 665-681 (2000).

  2. "Annular Dehn functions of groups"
    with Jon Corson, Bull Australian Math Soc, vol. 58, pp. 453-464 (1998)

  3. "Dehn functions and complexes of groups"
    with Jon Corson, Glasgow Math J, vol 40 (1998)

  4. "Quasi-isometries and amalgamations of tame combable groups"
    Int J of Alg and Comp, vol 4, no 2, (1995)

  5. "The Qsf property for groups and spaces"
    with Mike Mihalik, Math Zeit, vol 220, (1995)

  6. "Group extensions are quasi-simply-filtrated"
    with Mike Mihalik, Bull Australian Math Soc, vol 50, no1, (1994)

  7. "Quasi-isometries and ends of groups"
    J of Pure and Appl Alg, vol 86, (1993)

  8. "Dehn functions of groups and extensions of complexes"
    Pacific J of Math, vol 161, no 1, (1993)

  9. "On Dehn functions and products of groups"
    Trans AMS, vol 335, no 1, (1993)

  10. "A note on coverings and Kervaire complexes"
    Bull Australian Math Soc, vol 46, no 1, (1992)

  11. "Relative normal-convexity and amalgamations"
    Bull Australian Math Soc, vol 44, no 1, (1991)

  12. "Normal-convexity and equations over groups"
    Inventiones math, vol 94, (1988)
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