DIN ISO 14132-4:2016-07 Optics and photonics - Vocabulary for telescopic systems - Part 4: Terms for astronomical telescopes (ISO 14132-4:2015); Text in German and English
2016DIN ISO 14132-4:2016-07 Optics and photonics - Vocabulary for telescopic systems - Part 4: Terms for astronomical telescopes (ISO 14132-4:2015); Text in German and English
2016DIN ISO 14132-4:2016 Optics and photonics - Vocabulary for telescopic systems - Part 4: Terms for astronomical telescopes (ISO 14132-4:2015); Text in German and English