article 179 where the salvage operations rendered to the distressed ship and other property have had a useful result, the salvor shall be entitled to a reward.
第一百七十九条救助方对遇险的船舶和其他财产的救助,取得效果的,有权获得救助报酬;
some basis elements of this custom are summed up during the research, and also there established a burden of proof imposed on the distressed ship claiming the right of refuge.