1. Diskrete Räume;Alexandroff;Mat. Sb. (N.S.),1937
2. Distributive Lattices;Balbes,1975
3. Coproducts of bounded (α,β)-distributive lattices;Bandelt;Algebra Univers.,1983
4. Coherent frames;Banaschewski,1981
5. The power of the ultrafilter theorem;Banaschewski;J. Lond. Math. Soc. (2),1983