“Summary of the 2002 Pacific Northwest of USA Pear Rootstock Trials: Performance of ’d’Anjou’ and ’Golden Russet Bosc’ Pear on Eight PyrusRootstocks”, jpom, vol. 67, no. 2, pp. 80–88, Apr. 2013, doi: 10.71318/apom.2013.67.2.80.