1. Some difficulties in the statistical analysis of replicated experiments;Cochran;Emp. J. exp. Agric.,1938
2. Effects of purine antagonists on a diaminopurine-resistant strain of Lactobacillus casei;Elion;J. biol. Chem.,1953b
3. Purine metabolism of a diaminopurine-resistant strain of Lactobacillus casei;Elion;J. biol. Chem.,1953a
4. Regeneration from leaf squares of Peperomia sandersii A. DC: a relationship between rooting and budding;Harris;Ann. Bot.,1964
5. Anatomische und experimentalle untersuchungen über das augtieten von neubildungen an blättern von Begonia rex;Hartsema;Recl. Trav. bot. néerl.,1926