Subject
Paleontology,Ecology, Evolution, Behavior and Systematics
Reference2 articles.
1. Grass pollen extracts, 1. The general properties of aqueous extracts of rye grass pollen;Johnson;Intern. Arch. Allergy Appl. Immunol.,1958
2. Antigen-antibody reactions in gels;Ouchterlony;Arkiv Kemi Mineral. Geol. Kgl. Svenska Vetenskapsakad,1949