1. Class Toxoplasmatea critical review and proposal of the new name Frenkelia gen. n. for M-organism;Biocca;Parassitologia,1968
2. Frenkelia-Infektionen bei Chinchillas;Burtscher;Ztschr. Parasitkde,1976
3. Relationship of ocysts of “Isospora buteonis” from the barn-owl (Tyto alba) to muscle cysts of Sarcosporidians from the house mouse (Mus musculus);ĈErna;Folia Parasit.,1976
4. Microtus arvalis as the intermediate host of a coccidian from the kestrel (Falco tinnunculus);ĈErna;Folia Parasit.,1976
5. Nachweis toxoplasmaähnlicher Parasiten bei der Wühlmaus Clethrio nomys glareolus;Erhardová;Folia Biolog. (Praha),1955