1. Performance of trees in the Massachusetts planting of the 1994 NC-140 apple rootstock trial over seven growing seasons;Autio;Fruit Notes,2000
2. NC-140 cooperators, rootstock and scion interact to affect apple tree performance: results from the 1990 NC-140 cultivar/rootstock trial;Autio;Acta Hortic.,2001
3. Apfelunterlagen gestern und heute;Baab;Erwerbsobstbau,1998
4. Performance of 3 apple cultivars with 23 dwarfing rootstocks during 8 seasons on Washington;Barritt;Fruit Varieties J.,1995
5. Performance of 3 apple cultivars with 18 vigorous rootstocks during 9 seasons in Washington;Barritt;Fruit Varieties J.,1996