Ringer, M., Jakab, G., Sipos, P., Szabó, M., Horváth-Szabó, K., Perényi, K., & Szalai, Z. (2021). Vertical differentiation of pedogenic iron forms – a key of hydromorphic soil profile development. Hungarian Geographical Bulletin, 70(4), 369–380. https://doi.org/10.15201/hungeobull.70.4.6