1. “Grasslands Nui” Perennial Ryegrass;Armstrong;NZ J Exp Agric.,1977
2. “Grasslands Moata” Tetraploid Italian Ryegrass;Armstrong;NZ J Exp Agric.,1981
3. A New Selected Perennial-type Ryegrass Variety;Barclay;Proc NZ Grassland Assoc,1964
4. Grasslands “4707”: A New Tetraploid Western Wolths Ryegrass;Barclay;Proc NZ Grassland Assoc,1966
5. The Genetic Basis of Present Breeding Methods in Forage Crops;Breese;Euphytica,1972