Dieter Lenzen
Information is hard to find for Dieter Lenzen. However here is a book on his philosophy of Education: http://www.ebooksfinder.com/by-author/l/lenzen-dieter/methods-in-philosophy.html
Information is hard to find for Dieter Lenzen. However here is a book on his philosophy of Education: http://www.ebooksfinder.com/by-author/l/lenzen-dieter/methods-in-philosophy.html