XGAP : a GAP 4 package - References

Alberto Cavicchioli.
A countable class of non-homeomorphic homology spheres with Heegaard genus two.
Geom. Dedicata, 20:345--348, 1986.
K. Ferber and H. Jürgensen.
A Programme for Drawing a Lattice.
In J. Leech, editor, Computational Problems in Abstract Algebra, pages 83--86, 1970.
Derek F. Holt and Sarah Rees.
A Graphics System for Displaying Finite Quotients of Finitely Presented Groups.
In L. Finkelstein and W. M. Kantor, editors, Groups and Computation, pages 113--126, 1991.
Susanne Keitemeier.
Graphische Darstellung von Untergruppendiagrammen im Computeralgebraprogramm GAP.
Diplomarbeit, 1995.


XGAP manual
February 2022