Plant production, transpiration ratio and nutrient ratios as influenced by interactions between water and nitrogen = Planteproduktion, transpirationskoefficienten og naeringsstofkoefficienter i relation til vekselvirkninger mellem vand og kvaelstof - Nielsen, Bodil Friis (Andelsbogtrykkeriet, 1963)
Zugl.: København, Univ., Diss., 1962