%0 Journal Article
%A Janasz, Marek
%A Pieronkiewicz, Barbara
%T Factorial number system as an example of substantial learning environment for pre- and in-service teachers of mathematics
%J Annales Universitatis Paedagogicae Cracoviensis. Studia ad Didacticam Mathematicae Pertinentia
%D 2018
%P 71-91
%V 10
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUPCDM_2018_10_1_a5/
%G en
%F AUPCDM_2018_10_1_a5