We recently published a paper on APBSmem that includes 3 practical test cases of the software. The article is open access and available at http://www.plosone.org/article/info:doi/10.1371/journal.pone.0012722.

You can cite your use of APBSmem using the following citation:

Callenberg KM, Choudhary OP, de Forest GL, Gohara DW, Baker NA, Grabe M. (2010) APBSmem: A Graphical Interface for Electrostatic Calculations at the Membrane. PLoS ONE 5(9): e12722. doi:10.1371/journal.pone.0012722