Marmann, P., Wendler, R., Millard, P., & Heilmeier, H. (1997). Nitrogen storage and remobilization in ash (Fraxinus excelsior) under field and laboratory conditions. Trees (Berlin, West), 11(5), 298-305. https://doi.org/10.1007/PL00009675
Chicago Style (17th ed.) CitationMarmann, Peter, Renate Wendler, Peter Millard, and H. Heilmeier. "Nitrogen Storage and Remobilization in Ash (Fraxinus Excelsior) Under Field and Laboratory Conditions." Trees (Berlin, West) 11, no. 5 (1997): 298-305. https://doi.org/10.1007/PL00009675.
MLA (9th ed.) CitationMarmann, Peter, et al. "Nitrogen Storage and Remobilization in Ash (Fraxinus Excelsior) Under Field and Laboratory Conditions." Trees (Berlin, West), vol. 11, no. 5, 1997, pp. 298-305, https://doi.org/10.1007/PL00009675.
Warning: These citations may not always be 100% accurate.