. . "A list (concatenated and separated) of references (publication, global unique identifier, URI) used in the Identification."@en . . "recommended" . "Identification References"@en . "The recommended best practice is to separate the values with a vertical bar (' | '). Examples: \"Aves del Noroeste Patagonico. Christie et al. 2004.\", \"Stebbins, R. Field Guide to Western Reptiles and Amphibians. 3rd Edition. 2003. | Irschick, D.J. and Shaffer, H.B. (1997). ''The polytypic species revisited: Morphological differentiation among tiger salamanders (Ambystoma tigrinum) (Amphibia: Caudata).'' Herpetologica, 53(1), 30-49.\"."@en . "DataSets/DataSet/Units/Unit/Identifications/Identification/References" . "2014-10-23" . . . . "2008-11-19" .