TY - GEN AU - Allard, B AU - Boren, H AU - Grimvall, A TI - Humic Substances in the Aquatic and Terrestrial Environment: Proceedings T2 - Lecture Notes in Earth Sciences SN - 3540537023 U1 - 631.417 PY - 1991/// CY - Berlin PB - Springer-Verlag KW - Humes KW - Soil Engineering ER -