Johansson, Frank (2003). "Latitudinal shifts in body size of Enallagma cyathigerum (Odonata)". Journal of Biogeography (dalam bahasa Inggris). 30 (1): 29–34. doi:10.1046/j.1365-2699.2003.00796.x. ISSN1365-2699.
Bots, Jessica; De Bruyn, Luc; Snijkers, Tom; Van Den Branden, Bert; Van Gossum, Hans (2010). "Exposure to perfluorooctane sulfonic acid (PFOS) adversely affects the life-cycle of the damselfly Enallagma cyathigerum". Environmental Pollution (dalam bahasa Inggris). 158 (3): 901–905. doi:10.1016/j.envpol.2009.09.016. ISSN0269-7491. PMID19811863.
Bots, Jessica; De Bruyn, Luc; Snijkers, Tom; Van Den Branden, Bert; Van Gossum, Hans (2010). "Exposure to perfluorooctane sulfonic acid (PFOS) adversely affects the life-cycle of the damselfly Enallagma cyathigerum". Environmental Pollution (dalam bahasa Inggris). 158 (3): 901–905. doi:10.1016/j.envpol.2009.09.016. ISSN0269-7491. PMID19811863.
worldcat.org
Johansson, Frank (2003). "Latitudinal shifts in body size of Enallagma cyathigerum (Odonata)". Journal of Biogeography (dalam bahasa Inggris). 30 (1): 29–34. doi:10.1046/j.1365-2699.2003.00796.x. ISSN1365-2699.
Bots, Jessica; De Bruyn, Luc; Snijkers, Tom; Van Den Branden, Bert; Van Gossum, Hans (2010). "Exposure to perfluorooctane sulfonic acid (PFOS) adversely affects the life-cycle of the damselfly Enallagma cyathigerum". Environmental Pollution (dalam bahasa Inggris). 158 (3): 901–905. doi:10.1016/j.envpol.2009.09.016. ISSN0269-7491. PMID19811863.