Preparation of consistent soil data sets for modelling purposes: secondary SOTER data for four case study areas - Batjes, N. H; Al-Adamat, R; Bhattacharyya, T; Bernoux, M; Cerri, Carlos Eduardo Pellegrino; Gicheru, P; Kamoni, P; Milne, E; Pal, D. K; Rawajfih, Z (Agriculture, Ecosystems & Environment, 2007)