%0 Journal Article %A Maria-Albert Jerzy Jochelson %T "Kowal" system in Metallurgy %J Mathematica Applicanda %D 2020 %P 227-238 %V 48 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/ma.v48i2.7049/ %R 10.14708/ma.v48i2.7049 %G pl %F 10_14708_ma_v48i2_7049