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2. International Agency for Research on Cancer. Monograph on the evaluation of the carcinogenic risk of chemicals to humans. Vol 4: Chemicals, industrial processes and industries associated with cancer in humans,1982
3. HPLC analysis of linear furocoumarins (psoralens) in healthy celery (Apium graveolens);Beier, R.C.; Ivie, G.W.; Oertli, E.H.;Food Chem Toxicol,1983
4. The isolation and characterization of two phototoxic furocoumarins (psoralens) from diseased celery;Scheel, L.D.; Perone, V.B.; Larkin, R.L.;Biochemistry,1963
5. Phototoxic dermatitis caused by celery infected by Sclerotinia sclerotiorum;Austad, J.; Kavli, G.;Contact Dermatitis,1983