1. Imaginary quadratic fields with Cl2(k)=(2,2,2);Benjamin;J. Number Theory,2003
2. N. Boston, M. Bush, The distribution of Galois groups of p-class towers of imaginary quadratic fields, preprint
3. Counterexamples to a conjecture of Lemmermeyer;Boston;Arch. Math. Basel,1999
4. Finite extensions of free pro-p groups of rank at most two;Herfort;Israel J. Math.,1998
5. Four-Manifolds, Geometries and Knots;Hillman,2002