Home › Authors › Henning Andersen 👤 Henning Andersen b. 1934 ยท 4 books Books by Henning Andersen Actualization 2001 Active Arithmetic - Movement and Mathematics Teaching in the Lower Grades of a Waldorf School 1995 Sandhi phenomena in the languages of Europe 1986 Tenues and mediae in the Slavi Tenues and mediae in the Slavic languages 1967