1. Presence and dispersal of infective Frankia in peat and meadow soils in Sweden
2. , , , and , 1983. Cartas de precipitación de la zona oeste de las provincias de Río Negro y Neuquén. Primera contribución. Facultad de Ciencias Agrarias, Cinco Saltos. Universidad Nacional del Comahue.
3. Distribution and abundance of infective, soilborne Frankia and host symbionts Shepherdia, Alnus, and Myrica in a sand dune ecosystem
4. and , 1987. Soluble Salts. Part 9. In: Methods for Chemical Analysis of Soils. NZ Soil Bureau Scientific Report 80. (Department of Scientific and Industrial Research Editors), pp. 77–82. Lower Hunt, New Zealand.
5. 1996. Nitrogen-total. In: Methods of Soil Analysis. Part 3. Chemical Methods. Book Series 5 (J. L. Bigham, Editor), pp. 1085–1121. ASA, SSSA. Madison, Wisconsin.