1. On a counter-example of A.H. Stone;Borges;Quart. J. Math. Oxford,1969
2. A productive, open- and closed-hereditary topological invariant of T1-spaces which is not hereditary;van Douwen;Nieuw Arch. Wisk.,1971
3. The box product of countably many metrizable spaces need not be normal;van Douwen;Fund. Math.,1975
4. A non-normal box product;Erdös,1974
5. Monotonically normal spaces;Heath;Trans. AMS,1973