Martius, C. (2001) Managing organic matter in tropical soils : scope and limitations ; proceedings of a workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) - Germany, 7 - 10 June, 1999 [book], Developments in plant and soil sciences. Dordrecht [u.a.]: Kluwer Academic Pr. (Developments in plant and soil sciences, 93).

Martius, Christopher. Managing organic matter in tropical soils : scope and limitations ; proceedings of a workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) - Germany, 7 - 10 June, 1999. Book. Developments in plant and soil sciences. Developments in plant and soil sciences 93. Dordrecht [u.a.]: Kluwer Academic Pr., [2001?], Dordrecht [u.a.]: Kluwer Academic Pr., [2001?].

Martius, C. (ca. 2001). Managing organic matter in tropical soils : scope and limitations ; proceedings of a workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) - Germany, 7 - 10 June, 1999 [Book]. In Developments in plant and soil sciences. Kluwer Academic Pr.

Martius, C. „Managing organic matter in tropical soils : scope and limitations ; proceedings of a workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) - Germany, 7 - 10 June, 1999“. Developments in plant and soil sciences, book, Kluwer Academic Pr., 2001.

MARTIUS, Christopher, 2001. Managing organic matter in tropical soils : scope and limitations ; proceedings of a workshop organized by the Center for Development Research at the University of Bonn (ZEF Bonn) - Germany, 7 - 10 June, 1999. Dordrecht [u.a.]: Kluwer Academic Pr. Developments in plant and soil sciences, 93. ISBN 1402004559