Ambroży K., Mejza I. (2012): Modeling data from three-factor experiments with split units set up in designs with different block structures (in Polish). Biul. IHAR 264: 23-31.
Ambroży K., Mejza I., Mejza S. (2014): On the relative efficiency of split-split-plot design to split-plot × split-block design. Colloquium Biometricum 44: 69-78.
Szulc P., Bocianowski J. (2012): The effect of soil supplementation with different forms of nitrogen fertiliser on modification of generative yield in two different types of maize (Zea mays L.) hybrids. Polish Journal of Agronomy 11: 52-64.