Hury, G., Stankowski, S., Jaroszewska, A., Michalska, B. i Gibczyńska, M. (2020) „The effect of tillage system and nitrogen fertilization on yield and yield components of winter spelt cultivars (Triticum aestivum ssp. spelta L.)”, Polish Journal of Agronomy, 41(41), s. 11–19. doi: 10.26114/pja.iung.414.2020.41.02.