Annales Universitatis Mariae Curie-Sklodowska, Vol. 72, N 1
Uniwersytet Marii Curie-Sklodowskiej
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Annales Universitatis Mariae Curie-Sklodowska. Sectio A, Mathematica. - Lublin.
Vol. 72, N 1. - 2018. - 90 p.