Dufey, J., Jamar, D., Cogels, OG., & Frankart, R. (1984). [Effect of the Type of Agricultural Exploitation On the Properties of Cultivated Soils .1. Chemical-properties]. Revue de l’Agriculture, 37(5), 1191-1203. https://hdl.handle.net/2078.5/142378 (Original work published 1984)