1. BURR , E. J. 1968 Cluster sorting with mixed character types. I. Standardization of character values. Aust. Comput. J., 1(2): 97-9
2. BURR , E. J. 1970 Cluster sorting with mixed character types. II. Fusion strategies. Aust. Comput. J., 2(3): 98-103
3. A further numerical contribution to the classification of the Poaceae.;CLIFFORD;Aust. J. Bot.,,1969
4. Classification and phytogeny in the Orchidaceae.;DRESSLER;Ann. Mo. bot. Gdn.,,1960