TY  - BOOK
AU  - Freudenthal,Hans
TI  - Didactical phenomenology of mathematical structures
PY  - 1983///
CY  - Dordrecht
PB  - Reidel Pub. Co.
KW  - Mathematics
KW  - Study and teaching
KW  - 1961-
N1  - Includes index; 'List of the author's publications on mathematics education': p. 579-585
ER  -