1. Redescription of Strombidinopsis minima (Gruber, 1884) Lynn et al., 1991 (Protozoa, Ciliophora), with notes on its ontogenesis and distribution;Agatha;Eur. J. Protistol.,2003
2. Evolution of ciliary patterns in the Oligotrichida (Ciliophora, Spirotricha) and its taxonomic implications;Agatha;Zoology,2004
3. A cladistic approach for the classification of oligotrichid ciliates (Ciliophora: Spirotricha);Agatha;Acta Protozool,2004
4. Morphologic and genetic variability in the marine planktonic ciliate Laboea strobila Lohmann, 1908 (Ciliophora, Oligotrichia), with notes on its ontogenesis;Agatha;J. Eukaryot. Microbiol.,2004
5. Bütschli, O., 1887–1889. Erster Band. Protozoa. III. Abtheilung. Infusoria und System der Radiolaria, In: Bronn, H.G. (Ed.), Klassen und Ordnungen des Thier-Reichs, wissenschaftlich dargestellt in Wort und Bild. Winter'sche Verlagshandlung, Leipzig, Heidelberg, pp. 1089–2035+plates 56–79 (1887: 1089–1280, 1888: 1281–1584, 1889: 1585–2035).