1. 13. Meldrum J. D. P. and Meyer J. H. , Intermediate ideals in matrix near-rings, Paper presented to the International Conference in Near-rings and Near-fields held at Hamburg in August, 1995.
2. Division D.G. Near-Rings
3. 4. Beidleman J. C. , On near-rings and near-ring modules (Doctoral dissertation, Pennsylvania State University, 1964).