Humic acid preparation, properties and interactions with metals lead and cadmium

by Coles, Cynthia A., Yong, Raymond N.
Source: 1. Engineering geology 1. 0013-7952 1. Roč. 85, č. 1-2 (máj 2006), s. 26-32

Testing of earthy brown coal (Lubstów deposit - Poland) as possible additive for coal liquefaction

by Broniek, Elzbieta, Grigoriev, Fedor N., Grigorieva, Eugenia N., Jankowska, Anna, Jasienko-Halat, Maria
Source: 1. 8th Conference on environment and mineral processing, part 2 1. Ostrava : Vysoká škola báňská - Technická univerzita, 2004 1. 80-248-0559-6 1. S. 333-337

Problem of humic substances

by Pertile, Eva, Lyčková, Gabriela, Kowalski, Z.
Source: 1. 6th Conference on environment and mineral processing, part II 1. Ostrava : Vysoká škola báňská - Technická univerzita, 2002 1. 8024800721 1. S. 553-556

Properties of humus of natural forest soil and arable soil

by Gonet, Slawomir S., Debska, Bozena, Zaujec, Anton, Banach-Szott, Magdalena
Source: 1. Ekológia (Bratislava) 1. Roč. 27, č. 4 (2008), s. 351-366 1. 1335-342X