He issued several essays collections , including Svermeren og hans demon ( 1972 ) , a collection of four essays on the writer Knut Hamsun .
Brynildsen co-edited the anthroposophical magazine Spektrum from 1950 to 1954 .
Brynildsen issued several essays collections , including Svermeren og hans demon ( 1972 ) , a collection of four essays on the writer Knut Hamsun .
Brynildsen co-edited the anthroposophical magazine Spektrum from 1950 to 1954 .