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Problemy Eksploatacji > 2016 > no. 2 > 47--57
TransNav : International Journal on Marine Navigation and Safety of Sea... > 2009 > Vol. 3, no. 3 > 269--274
Problemy Eksploatacji > 2016 > no. 2 > 47--57
TransNav : International Journal on Marine Navigation and Safety of Sea... > 2009 > Vol. 3, no. 3 > 269--274