 According to Miers, 
While the initial impulses of Pragmatic Magic can be verified as early as Spare and Staudenmaier, its consistent implementation in the German speaking realm was only effected by Frater V∴D∴ who also introduced the term.He features prominently in Gerhard Mayer's field study of 13 contemporary magicians where he is referenced both under his public magical name Frater V∴D∴ and, perfunctorily anonymized, as "Isbrand".While residing in Bonn, Germany from 1979 to 1981, Tegtmeier ran an occult bookstore named Horus.