Krapp, Florian, Geyner Alves dos Santos Cruz, Tina Wöhrmann, Ana Maria Benko-Iseppon, and Kurt Weising. 2013. “A Set of Variable Plastid SSR Markers for the Genus Cryptanthus (Bromeliaceae)”. Research in Plant Biology 3 (2). https://www.updatepublishing.com/journal/index.php/ripb/article/view/2521.