Title:A new species of Petasiger (Digenea, Echinostomatidae) parasitizing Podiceps major and Rollandia rolland (Aves, Podicipedidae) from Buenos Aires Province, Argentina
Title:IR-spectroscopic characterization of biominerals in the marattiaceaeus ferns / Caracterização de biominerais por espectroscopia infravermelha em Marattiaceae