Rodger, C. A.Fu, H. L.Sarvate, Dinesh Gopalrao2016-01-242016-01-2419951172-8531http://hdl.handle.net/10092/11692The work in this research report was done while visiting The University of Canterbury, and was completed jointly in cooperation with H.L. Fu and D. Sarvate. These results follow upon previous efforts where we were investigating the existence of group divisible designs with first and second associates and with block size 3. Background information concerning this problem will be added to the final version which will incorporate all our work on the topic.enCopyright C. A. RodgerFields of Research::49 - Mathematical sciences::4904 - Pure mathematics::490405 - Group theory and generalisations