Here is the PDF: https://ris.utwente.nl/ws/portalfiles/portal/6142049/meijer91functional.pdf https://ris.utwente.nl/ws/portalfiles/portal/6142049/meijer9... (a

Here is the PDF: https://ris.utwente.nl/ws/portalfiles/portal/6142049/meijer91functional.pdf https://ris.utwente.nl/ws/portalfiles/portal/6142049/meijer9... (and here is a more useful link to a publication database containing a link to a PDF: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.125 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.41.1...) The text is from 1991.