POSPÍŠILOVÁ, Ľubica et al. Fate of humic acids isolated from natural humic substances. In Acta Agriculturae Scandinavica - Section B Soil and Plant Science. Vol. 65, iss. 6 (2015), s. 517-528. ISSN 0906-4710 (0.649 - 2015). C*2015/ADC058