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Polish Maritime Research > 2021 > nr 1 > 163--172
Polish Maritime Research > 2020 > nr 1 > 46--52
Zeszyty Naukowe Akademii Morskiej w Szczecinie > 2016 > nr 46 (118) > 141--146
TransNav : International Journal on Marine Navigation and Safety of Sea... > 2016 > Vol. 10, no. 2 > 223--228