Didactical phenomenology of mathematical structures. Freudenthal, H. Volume 1 of Mathematics Education Library, D.\,Reidel Publishing Company, Dordrecht, 8, 1983.
bibtex   
@book{Freudenthal1983,
  author    = {Hans Freudenthal},
  title     = {{Didactical phenomenology of mathematical structures}},
  year      = 1983,
  month     = 8,
  publisher = {D.\,Reidel Publishing Company},
  address   = {Dordrecht},
  volume    = {1},
  series    = {Mathematics Education Library},
  isbn      = {90-277-1535-1},
  annote = {Mathematikphänomene},
}

Downloads: 0