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Transport Problems > 2020 > T. 15, z. 2 > 45--57
Acta Energetica > 2018 > nr 2 > 52--56
Acta Energetica > 2018 > nr 2 > 45--51
Transport Problems > 2020 > T. 15, z. 2 > 45--57
Acta Energetica > 2018 > nr 2 > 52--56
Acta Energetica > 2018 > nr 2 > 45--51