Fateev A, Semenov D, Smirnova K, Shemet A. Influence of humus acids on mobility and biological availability of iron, zinc and copper. Agric. sci. pract. [Internet]. 2015Apr.15 [cited 2026Jun.14];2(1):73-8. Available from: https://www.agrisp.com/index.php/agrisp/article/view/43