1. Scientific research of the Austrian projects of the International Geological Correlation Program (IGCP) until 1976;Brigo,1978
2. Determination of nickeliferous rocks by analysis of herbarium specimens of indicator plants;Brooks;J. Geochem. Explor.,1977
3. Hyperaccumulation of nickel by Alyssum Linnaeus (Cruciferae);Brooks,1979
4. Hyperaccumulation of copper and cobalt—a review;Brooks;Bull. Soc. Roy. bot. Belg.,1981
5. Studies on manganese-accumulating Alyxia from New Caledonia;Brooks;Taxon,1981