↑ Gullino, Maria Lodovica; Fletcher, Jacqueline; Gamliel, Abraham; Stack, James Peter (2008-04-24). Crop Biosecurity: Assuring Our Global Food Supply . Springer Science & Business Media. p. 116. ISBN97814020847682015年4月2日に取得。
↑ Gullino, Maria Lodovica; Fletcher, Jacqueline; Gamliel, Abraham; Stack, James Peter (2008-04-24). Crop Biosecurity: Assuring Our Global Food Supply . Springer Science & Business Media. p. 48. ISBN97814020847682015年4月2日に取得。
↑ Peterson, Paul D.; Griffith, Clay S. (2000年9月). "CL Shear: 才能ある菌類学者、植物病理学者、およびAPS創設者" . Annual Review of Phytopathology . 38 (1): 19– 29. doi : 10.1146/annurev.phyto.38.1.19 . ISSN 0066-4286 . PMID 11701834 .