S.C. Smolinske, D.G. Spoerke, S.K. Spiller et K.M. Wruk, « Cigarette and Nicotine Chewing Gum Toxicity in Children », Human Toxicology, vol. 7, no 1, , p. 27–31 (ISSN0144-5952, DOI10.1177/096032718800700105, lire en ligne, consulté le )
Edward Balfour, The cyclopædia of India and of Eastern and Southern Asia : commercial, industrial and scientific, products of the mineral, vegetable, and animal kingdoms, useful arts and manufactures /, B. Quaritch,, (lire en ligne)
E. Köhler, « Liogier, A. H. & Martorell, L. F., Flora of Puerto Rico and Adjacent Islands. A Systematic Synopsis. 342 S. Editorial de la Universidad de Puerto Rico. Rio Piedras, 1982. Brosch », Feddes Repertorium, vol. 98, nos 9-10, , p. 551–551 (ISSN0014-8962 et 1522-239X, DOI10.1002/fedr.4910980917, lire en ligne, consulté le )
E. Pienaar et L. Mucina, « High-altitude Fynbos of the Western Cape: What do we know and what is still to learn? », South African Journal of Botany, vol. 73, no 2, , p. 333 (ISSN0254-6299, DOI10.1016/j.sajb.2007.02.175, lire en ligne, consulté le )
Shweta Sharma, Usha Kiran et Sudhir Kumar Sopory, « Developing Stress-Tolerant Plants by Manipulating Components Involved in Oxidative Stress », dans Plant Biotechnology: Principles and Applications, Springer Singapore, (ISBN9789811029592, lire en ligne), p. 233–248
Charles Frederick Millspaugh et Raymond. Hamet, I. The genera Pedilanthus and Cubanthus, and other American Euphorbiaceae,, s.n., (lire en ligne)
Asa B. Strong, The American flora : or history of plants and wild flowers : containing their scientific and general description, natural history, chemical and medical properties, mode of culture, propagation , &c., designed as a book of by A. B. Strong., Hull & Spencer,, (lire en ligne)
S.C. Smolinske, D.G. Spoerke, S.K. Spiller et K.M. Wruk, « Cigarette and Nicotine Chewing Gum Toxicity in Children », Human Toxicology, vol. 7, no 1, , p. 27–31 (ISSN0144-5952, DOI10.1177/096032718800700105, lire en ligne, consulté le )
E. Köhler, « Liogier, A. H. & Martorell, L. F., Flora of Puerto Rico and Adjacent Islands. A Systematic Synopsis. 342 S. Editorial de la Universidad de Puerto Rico. Rio Piedras, 1982. Brosch », Feddes Repertorium, vol. 98, nos 9-10, , p. 551–551 (ISSN0014-8962 et 1522-239X, DOI10.1002/fedr.4910980917, lire en ligne, consulté le )
E. Pienaar et L. Mucina, « High-altitude Fynbos of the Western Cape: What do we know and what is still to learn? », South African Journal of Botany, vol. 73, no 2, , p. 333 (ISSN0254-6299, DOI10.1016/j.sajb.2007.02.175, lire en ligne, consulté le )
