M.  Rex, Schulte, K., Zizka, G., Peters, J., Vásquez, R., Ibisch, P. L., and Weising, K., ?Phylogenetic analysis of Fosterella L.B. Sm. (Pitcairnioideae, Bromeliaceae) based on four chloroplast DNA regions?, Molecular Phylogenetics and Evolution, vol. 51, pp. 472?485, 2009.

J.  Peters, Vásquez, R., Osinaga, A., Leme, E., Weising, K., and Ibisch, P. L., ?Towards a taxonomic revision of the genus Fosterella (Bromeliaceae)?, Selbyana, vol. 29, pp. 182?194, 2008.

H. - P.  Kreier, Rex, M., Weising, K., Kessler, M., Smith, A. R., and Schneider, H., ?Inferring the diversification of the epiphytic fern genus Serpocaulon (Polypodiaceae) in South America using chloroplast sequences and amplified fragment length polymorphisms?, Plant Systematics and Evolution, vol. 274, pp. 1?16, 2008.

M.  Rex, Patzolt, K., Schulte, K., Zizka, G., Vásquez, R., Ibisch, P. L., and Weising, K., ?AFLP analysis of genetic relationships in the genus Fosterella L.B. Smith (Pitcairnioideae, Bromeliaceae)?, Genome, vol. 50, pp. 90?105, 2007.

B.  Gemeinholzer, Rey, I., Weising, K., Grundmann, M., Muellner, A. N., Zetzsche, H., Droege, G., Seberg, O., Petersen, G., Rawson, D., and Weigt, L., ?Organizing specimen and tissue preservation in the field for subsequent molecular analyses?, in Manual on field recording techniques and protocols for all taxa biodiversity: Inventories and monitoring, vol. 8, J.  Eymann, Degreef, J., Häuser, C. L., Monje, J. Carlos, Samyn, Y., and VandenSpiegel, D., Eds. 2010, pp. 129?157.