"Boden." . . "Surinam" . . "Soils, Surinam." . . "Surinam (Süd)." . . "Surinam (Süd)" . "Geomorphologie." . . "Bodemkunde." . . "Suriname." . . "Savannas, Surinam." . . "Geomorfologie." . . "Geomorphology and soils of Sipaliwini Savanna <South Suriname>" . . . "Geomorphology and soils of Sipaliwini Savanna(South Suriname)" . . . . . . . . . . "Geomorphology and soils of Sipaliwini Savanna : (South Suriname)" . "Geomorphology and soils of Sipaliwini Savanna, South Suriname" . . . . . . . . . . . . . . . . . . . "Geomorphology and soils of Sipaliwini Savanna (South Suriname)" . . . "Savannen." . . "Geografisch Instituut Rijksuniversiteit Utrecht." . . "Geologie. Aardwetenschappen." . . . . "Sipaliwini." . .