1.
IWANOWICZ-PALUS, Grażyna Jolanta, KRYSA, Justyna, KIPA, Magdalena, DZIADUSZEK, Katarzyna and ŻÓŁKIEWSKA, Beata. Physical activity in the perinatal period. Journal of Education, Health and Sport. Online. 31 August 2017. Vol. 7, no. 8, pp. 1272-1289. [Accessed 28 June 2025].