Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae oleh Andrés Dolinko, Luisa Borgmann, Christian Lutz, Ernest Ronald Curticean, Irene Wacker, María Sol Vidal, Candela Szischik, Yidenekachew Donie, Marina Inchaussandague, Diana Skigin, Hendrik Hölscher, Pablo Tubaro, Ana Barreira