Analysis of information sources in references of the Wikipedia article "HDMS Printz Friderich (1764)" in English language version.
The team used a combination of old naval maps and state-of-the-art sonar equipment to find the powerful 52-metre (170-foot) ship, which went down in stormy seas off Denmark's Laeso Island in September 1780.
The team of divers, led by Kim Schmidt, had searched over 104 square km of seabed, making more than 200 dives in vain in difficult conditions before locating the wreck.
