* Solórzano‐Morales, A, Barboza N, Hernández E, Mora‐Umaña F, Ramírez P, Hammond RW (2011) Newly discovered natural hosts of Tomato chlorosis virus in Costa Rica. Plant Disease. 95, 497.
* Goodey JB, Franklin MT, Hooper DJ (1965) T. Goodey's: The Nematode Parasites of Plants Catalogued Under Their Hosts. Commonwealth Agricultural Bureaux, Farnham Royal, Bucks, England. Third edition, 214 pp.
------- As Brassica napus var. napobrassica.
* Anonymous (1960) Index of Plant Diseases in the United States. Agriculture Handbook no 165, USDA-ARS (US) 531 pp.
------- As Brassica campestris var. napobrassica.
* Claassen BJ, Berry PA, Thomas WJ, Mallory-Smith C, Ocamb CM (2021) Black Leg and Chlorotic Leaf Spot Occurrence on Brassicaceae Crop and Weed Hosts. Plant Disease 105(11), 3418-3425.