1. Chapman-Richards growth function constrained for maximum tree size;SR Shifley,1984
2. Twenty years of black walnut genetic improvement at Purdue University;WF Beineke,1989
3. History of black walnut genetics research in North America;E Victory;History of black walnut genetics research in North America,2004
4. Edited by Irwin Goldman;JR McKenna,2018
5. Polito VS, Pinney K, Weinbaum S, Aradhya MK, Dangl J, Yankni Y, et al. Walnut pollination dynamics: pollen flow in walnut orchards. In V International Walnut Symposium 2004;705: 465–472.