id	domain	url
abc-3781	doi.org	https://doi.org/10.3906/bot-1407-9
abc-3781	doi.org	https://doi.org/10.3906/bot-1212-3
abc-3781	doi.org	https://doi.org/10.3372
abc-3781	doi.org	https://doi.org/10.3906/bot-1409-22
abc-3781	www.iucnredlist.org	http://www.iucnredlist.org/documents/redlistguidelines.pdf
abc-3781	doi.org	https://doi.org/10.3906/bot-1210-36
abc-3781	sweetgum.nybg.org	http://sweetgum.nybg.org
abc-3781	doi.org	https://doi.org/10.37427