Townley, L.R. (1989), Design of a groundwater modelling package, requiring large arrays and portable graphics, WATERCOMP '89, Melbourne, May 1989, 41-45.

The history of development of the AQUIFEM-N groundwater modelling package is described, together with a number of its more interesting features. These include different methods of storage allocation and a range of levels of interactive plotting. Issues relating to software portability, especially for graphics, are discussed.