Others (with Maassen, p. 810) while admitting that the poem in question can be none other than the Johannis of the aforesaid Latin poet (unknown to Fabricius, and first edited by Mazzuchelli, Milan, 1820), maintain that it has been wrongly attributed to this Cresconius, and that it cannot therefore aid in fixing his date.
Arnold (Nol) Maassen (August 18, 1922 in Amsterdam - July 3, 2009 in Langon, France) was a Dutch politician for the Labour Party (PvdA).
The Munsterschwarzach-Group (Godehard Joppich, Stefan Klockner et al.)(publishers of the Beiträge zur Gregorianik) have been issuing their own melodic restitutions, as has Anton Stingl, and Geert Maassen with his Fluxus.
Sascha Maassen, born September 28, 1969, in Aachen, Germany) is a veteran sports car driver.