The links are to PS versions of my preprints.

• On the capability of finite groups of class two and prime exponent. Last modified Aug 17, 2007. 43 pp. Also available in PDF format. Original, longer version of paper published in Publ. Math. Debrecen 85 (2014), pp. 399-427.
• A correction to a result of B. Maier. 4 pp., March 2001. Also a PDF version.
• Amalgamation bases for nil-2 groups of odd exponent. 29 pp., May 2000. Also a PDF version.

• Errata and notes for Capability of nilpotent products of cyclic groups, J. Group Theory 8 (2005), 431-452. Also available in PDF format.
• Notes for Capable 2-generator 2-groups of class two, Comm. Algebra 34 (2006), 2183-2193. Also available in PDF format.
• Notes and Errata for Certain homological functors of 2-generator p-groups of class 2, with R.F. Morse, Contemp. Math. 511 (2010), pages 127-166. Also available in PDF format.
• Notes for Two generator p-groups of nilpotency class two and their conjugacy classes, with A. Ahmad and R.F. Morse, Publ. Math. Debrecen 81, no.1/2 (2012), 145-166. Also available in PDF format.
• Errata for On the capability of finite groups of class two and prime exponent, Publ. Math. Debrecen 85/3-4 (2014), 309-337. Also available in PDF format.