Wilhelmus Antonius Arts has written:

'Inleiding tot het sociologisch onderzoek' -- subject(s): Research, Sociology

If your referring to the "Netherlands" than it is "Het Wilhelmus" ("The William")

The William is an English equivalent of 'Het Wilhelmus'. The Dutch phrase is the title of the Netherlands' national anthem. The anthem tells of the country's hero, Willem van Oranje [William I, Prince of Orange, April 24, 1533-July 10, 1584].

Wilhelmus Bekkers died in 1957.

Wilhelmus Bekkers was born in 1890.