1. An algebra for patterns on a complex, I;Atkin;Internat. J. Man–Machine Studies,1974
2. An algebra for patterns on a complex, II;Atkin;Internat. J. Man–Machine Studies,1976
3. Multidimensional Man;Atkin,1981
4. E. Babson, H. Barcelo, M. de Longueville, R. Laubenbacher, A Homotopy Theory for Graphs, preprint, 2003.
5. E. Babson, H. Barcelo, R. Laubenbacher, A-homotopy theory and arrangements of linear subspaces, in preparation.