CS1 Dutch-language sources (nl)

André-Gustave Citroën (French: [ɑ̃dʁe ɡystav sitʁɔɛn]; 5 February 1878 – 3 July 1935) was a French industrialist and the founder of French automaker Citroën. He is also remembered for his application of double helical gears.

Hector Guimard (French pronunciation: [ɛktɔʁ ɡimaʁ], 10 March 1867 – 20 May 1942) was a French architect and designer, and a prominent figure of the Art Nouveau style. He achieved early fame with his design for the Castel Beranger, the first Art Nouveau apartment building in Paris, which was selected in an 1899 competition as one of the best new building facades in the city. He is best known for the glass and iron edicules or canopies, with ornamental Art Nouveau curves, which he designed to cover the entrances of the first stations of the Paris Metro.Between 1890 and 1930, Guimard designed and built some fifty buildings, in addition to one hundred and forty-one subway entrances for Paris Metro, as well as numerous pieces of furniture and other decorative works. However, in the 1910s Art Nouveau went out of fashion and by the 1960s most of his works had been demolished, and only two of his original Metro edicules were still in place. Guimard's critical reputation revived in the 1960s, in part due to subsequent acquisitions of his work by Museum of Modern Art, and art historians have noted the originality and importance of his architectural and decorative works. Guimard was a disciple of Viollet le Duc.

Herman Gorter (26 November 1864, Wormerveer – 15 September 1927, Saint-Josse-ten-Noode, Brussels) was a Dutch poet and socialist. He was a leading member of the Tachtigers, a highly influential group of Dutch writers who worked together in Amsterdam in the 1880s, centered on De Nieuwe Gids (The New Guide).