Walker, Mick (2006), Motorcycle Evolution Design Passion, Baltimore: Johns Hopkins University Press, p. 27, ISBN978-0-8018-8530-3, «Minerva not only produced complete motorcycles, but was also a major supplier of engine assemblies to other pioneer firms throughout Europe...When production ceased in 1909, around 25,000 engines had been built.».
Tragatsch, Erwin (1964), «Minerva B 1901-1914», The world's motorcycles, 1894-1963: a record of 70 years of motorcycle production, Temple Press, p. 111, «Société Anonyme Minerva, 40 Rue Karel Ooms, Anvers. Minerva was a great name in the early days of the motorcycle. They supplied not only 2, 2¾, 3½ hp and other engines up to 8 hp to motorcycle producers in many countries, but built their own range of motorcycles with similar power units. Their products were of superb and advanced design and in 1903 mechanically o.h.i.vs already were in use. Motorcycle production later gave way to the manufacture of cars.».
«Triumph Motorcycles België " Over Triumph " Timeline " 1900's:». Triumph Motorcycles België. 2009. Archivado desde el original el 26 de mayo de 2009. «In 1902 the first motorcycle emerged from Triumph’s Coventry works. Known since as ‘No 1’, it was essentially a strengthened bicycle with a 2.25 bhp Minerva engine hung from the front down tube.»
«Triumph Motorcycles België " Over Triumph " Timeline " 1900's:». Triumph Motorcycles België. 2009. Archivado desde el original el 26 de mayo de 2009. «In 1902 the first motorcycle emerged from Triumph’s Coventry works. Known since as ‘No 1’, it was essentially a strengthened bicycle with a 2.25 bhp Minerva engine hung from the front down tube.»