Ng, H.H. & Tan, H.H. & Yeo, D.C.J. & Ng, P.K.L. (2010)
Stingers in a strange land: South American freshwater stingrays (Potamotrygonidae) in Singapore. Biological Invasions, 12(8), 2385–2388
DOI: 10.1007/s10530-009-9663-5