“Performance of ’Rakuraku Fuji’ Apple Trees on JM.7 and M.9Nagano Rootstocks, and M.9Nagano/Marubakaido Interstem Combination in Japan” (2003) Journal of the American Pomological Society, 57(4), pp. 157–160. doi:10.71318/apom.2003.57.4.157.