1. Electron-microscope investigations into exine stratification;Afzelius;Grana Palynol,1956
2. Studies on the Pollen grains of Indian Epilobium L;Banerjee;Palynol. Bull.,1966-67
3. Feinstruktur des Sporodermis einiger brasilianischer Mimosoiden-Polyaden;Barth;Pollen Spores,1965
4. Pollenoberflaechenfeinstruktur einiger Ditetraden von Mimosa.;Barth;Pollen Spores,1973
5. On the development of the pollen grain and anther of some Onagraceae;Beer;Beih. Bot. Centralbl,1904