Siudzińska, Natalia, and Ewelina Jankowska. “Acquisition of Word-Formation Competence by Children Aged 3 to 6 Based on the Example of Nomina Agentis”. Slavistica Vilnensis 67, no. 1 (September 29, 2022): 131–146. Accessed October 25, 2025. https://test.zurnalai.vu.lt/slavistica-vilnensis/article/view/27441.