http://www.change-climate.com/Transport_Land_Sea_Sustainable/Assisted_Ships_Sails_Solar_Projects_Marine_Pollution/Black_Magic_Rigid_Wing_Sails_Solar_Assisted_Cargo_Ships.htm
https://mightyships.blogspot.com/2012/03/black-magic-bluetec-solar-hybrid-tanker.html
https://www.greenlaunches.com/transport/ecofriendly-black-magic-vessel-for-a-green-future-of-ocean-travel.php