1. Salt tolerance of plants at various temperatures;Ahi;Plant Physiol.,1938
2. Buffum , B. C. 1896 Alkali: some observations and experiments Wyoming Exper. Sta. Bull. 29
3. Buffum , B. C. 1899 Alkali studies III. Germinating experiments with alkali salts Ninth Annual Report, Wyoming Agric. Exper. Sta. 1 40
4. Coe , Dana G. 1923 “Ammo-Phos.” Its effect upon seed germination and plant growth New Jersey Agric. Exper. Sta. Bull. 375
5. Permeabilitäts-studien an Ohara ceratophylla;Collander;Acta Botanica Fennica,1933