Modern Interferometry for Length MetrologyProfessor René Schödel, Dr. Florian Pollinger, Dr. Arnold Nicolaus · First published 2018Open the Tome
Die christelijk-nasionale onderwysbeweging in Suid-Afrika gedurende die tydperk, 1907-1920Nicolaus Arnold · First published 1954Open the Tome
Johannis Maccovii ... Distinctiones et regulae theologicae ac philosophicaeJan Makowski, Nicolaus Arnold · First published 1653Open the Tome
