1. Catalogue of the generic names of ciliates (Protozoa, Ciliophora);Aescht;Denisia,2001
2. Redescription of Tintinnopsis cylindrica Daday, 1887 (Ciliophora: Spirotricha) and unification of tintinnid terminology;Agatha;Acta Protozool.,2006
3. Phylogeny of the order Choreotrichida (Ciliophora, Spirotricha, Oligotrichea) as inferred from morphology, ultrastructure, ontogenesis, and SSrRNA gene sequences;Agatha;Eur. J. Protistol.,2007
4. Redescription of the tintinnid Stenosemella pacifica Kofoid and Campbell, 1929 (Ciliophora, Spirotricha) based on live observation, protargol impregnation, and scanning electron microscopy;Agatha;J. Eukaryot. Microbiol.,2008
5. Nomina conservanda;Apstein;Sber. Ges. Naturf. Freunde Berl.,1915