1. Every metric compactification is a Wallman-type compactification;Aarts;Proceedings International Symposium on Topology,1968
2. Cocompactifications;Aarts;Indag. Math.,1970
3. Semi-proximity spaces and cocompactness I and II;Aarts;Indag. Math.,1970
4. Cotopology for metrizable spaces;Aarts;Duke Math. J.,1970
5. Cocompactness;Aarts;Nieuw Arch. Wisk.,1970