9Jae H K, Byung H L, Jong S L. Production of Ribonucleotides by Autolysis of Hansenula anomala Grown on Korean Ginseng Steaming Effluent[J] . Journal of Bioscience and Bioengineering, 202, 93(3) :318 - 321
10Masor, Marc L. Infant nutritional formula with ribonucleotides[P]. US: 5492899