1. Silicone oil as a mounting medium for pollen grains;Andersen;Danmarks Geol. Undersøgelse, IV,1960
2. Quelques mensurations des pollens de Pinus silvestris L.;Aytug;Pollen Spores,1960
3. Ecologic investigations of Phragmites communis;Björk;Folia Limnol. Scand.,1967
4. Palynological Techniques;Brown,1960
5. Size-frequency characteristics of Abies fraseri pollen as influenced by different methods of preparation;Cain;Am. Midland Naturalist,1944