- Perfect images of generalized ordered spaces, Fundamenta Math., to appear (with D.J. Lutzer).
- Monotone covering properties and properties they imply, to appear in a Special Issue of Topology and its Applications in honor of Alan Dow (with Tim Chase).
- The NZ property and D-spaces, Acta Math. Hungar. 149(2016), 92-100 (with Z. Feng).
- Mary Ellen's Conjectures, Topology and Appl. 195(2015), 15-25; Special Issue honoring the memory of Mary Ellen Rudin (with Peter Nyikos).
- 1/k homogeneous long solenoids, Monatsh. Math. 180(2016), 171-192 (with J.P. Boronski and G. Kozlowski).
- Proximal compact spaces are Corson compact, Topology and Appl. 173(2014), 1-8 (with S. Clontz).
- Completeness properties in the compact-open topology on fans, Houston J. Math., to appear (with Glenn Hughes).
- Compact monotonically metacompact spaces are metrizable, Topology and Appl. 160(2013), 45-49 (with T. Chase).
- Generalized metrizable spaces, in Recent Progress in General Topology III, K.P. Hart, J. van Mill, and P. Simon, eds., Atlantis Press 2014.
- Topological algebraic structure on Souslin and Aronszajn lines, Topology Appl. 159(2012), 1559-1564 (with R. Heath and T. Poerio).
- A game and its relation to netweight and D-spaces, Comment. Math. Univ. Carolinae 52,4(2011), 561-568 (with P. Szeptycki).
- Thin-type dense sets and related properties, Topology and Appl. 158(2011), 2174-2183 (with J. Hutchison).
- Selective separability and its variations, Topology and Appl. 158(2011), 1352-1359 (with M. Sakai).
- Sequential properties of function spaces with the compact-open topology, Topology and Appl. 158(2011), 387--391(with B. Tsaban and L. Zdomskyy).
- Monotonically monolithic spaces, Corson compacts, and D-spaces, Topology and Appl. 159(2012), 1559-1564.
- A survey of D-spaces, Contemporary Math. 533(2011),13--28.
- Monotonically compact Hausdorff spaces are metrizable, Questions Answers Gen. Topology 27 (2009), 57--59.
- Weakly continuously Urysohn spaces, Topology Appl. 156 (2009), 1957--1961. (with P. Zenor).
- Covering compacta by discrete and other separated sets, Topology Appl. 156 (2009), no. 7, 1355--1360.
- Monotonically compact and monotonically Lindelof spaces, Q&A in Gen. Top. 26(2008), 121-130.
- Perfect compacta and basis problems in topology,in Open Problems in Topology II, E. Pearl, ed., Elsevier 2007, 151-159. (with J. Moore)
- Are stratifiable spaces M1?, in Open Problems in Topology II, E. Pearl, ed., Elsevier 2007, 143-150.
- Frechet-Urysohn for finite sets, II, Topology Appl. 154 (2007), 2856--2872. (with P. Szeptycki).
- On thin, very thin, and slim dense sets, Topology Appl. 154 (2007), no. 4, 817--833. (with T. Natkaniec and Z. Piotrowski).
- Products of Frechet spaces, Proceedings of the 20th Summer Conference on Topology and its Applications. Topology Proc. 30 (2006), 475--499.
- Products of cozero complemented spaces, Houston J. Math. 32 (2006), 757--773 .
- The story of a topological game, Rocky Mountain J. Math. 36 (2006), 1885--1914.
- Quotients of countably based spaces are not closed under sobrification, Math. Structures Comput. Sci. 16(2006), 223--229 (with T. Streicher).
- Baireness of C_k(X) for ordered X, Comment. Math. Univ. Carol. 47(2006), 103--111 (with M. Granado).
- A note on D-spaces, Topology Appl. 153(2006), 2229--2240.
- Base-paracompactness and base-normality of GO-spaces, Q & A in Gen. Topology 23 (2005), 137--141.
- On a question concerning sharp bases, Topology Appl. 153(2005), 90--96 (with B. Bailey).
- If X is sigma-compact Polish, then Ck(X) has a sigma-closure-preserving base, Topology Appl., 151(2005), 99-106 (with K. Tamano).
- Frechet-Urysohn for finite sets, Topology and Appl. 151(2005), 238-259 (with P. Szeptycki).
- Uniformization and anti-uniformization properties of ladder systems, Fundamenta Math. 181 (2004), no. 3, 189--213 (with Z. Balogh, T. Eisworth, O. Pavlov, and P. Szeptycki).
- Two more perfectly normal non-metrizable manifolds, Topology Appl. 151 (2005), 260--272 (with Z. Balogh).
- Zoli Topology Proc. 27 (2003), no. 1, i--xxiii (with D. Burke).
- Metrizable subspaces of spaces having a point-countable base, Questions Answers Gen. Topology 21 (2003), no. 2, 125-128.
- Spaces having a small diagonal, Proceedings of the International Conference on Topology and its Applications (Yokohama, 1999). Topology Appl. 122 (2002), 183--200.
- Metrizable spaces and generalizations, in Recent Progress in General Topology II, M. Husek and J. van Mill, eds., Elsevier, Amsterdam, 2002, pp. 201-225.
- Covering the irrationals by special Cantor sets, Comment. Math. Univ. Carolin. 43 (2002), no. 3, 497--509 (with Ronnie Levy). Click here for an erratum to this paper.
- When the collection of $\epsilon$-balls is locally finite, Topology Appl. 124 (2002), 445--450.
- Metrizability number and perfect maps, Questions Answers Gen. Topology 20 (2002), no. 2, 95--100.
- Weaker connected and weaker nowhere locally compact topologies for metrizable and similar spaces Topology Appl. 120 (2002), 365--384.
- Countable Toronto spaces, Fund. Math. 163 (2000), 143--162 (with J.T. Moore).
- Base multiplicity in compact and generalized compact spaces, Topology Appl. 115(2001), 139-151 (with Z. Balogh).
- Baire and Volterra spaces, Proc. AMS 128 (2000), 3115--3124 (with D. Lutzer).
- Connectedness properties of special subsets of the plane Topology Appl. 117 (2002), 1--7 (with A. Fedeli and A. LeDonne).