RME

http://dme.colorado.edu/fius/didacticaluseofmodelst.pdf
http://www.math.uoc.gr/~ictm2/Proceedings/invKwo.pdf
http://www.bsrlm.org.uk/IPs/ip30-1/BSRLM-IP-30-1-10.pdf
http://journals.tc-library.org/index.php/matheducation/article/viewFile/639/405
https://staff.fnwi.uva.nl/a.j.p.heck/Research/art/JSMESA.pdf
http://www.nieuwarchief.nl/serie5/pdf/naw5-2005-06-4-294.pdf
http://ac.els-cdn.com/S1877042814065082/1-s2.0-S1877042814065082-main.pdf?_tid=6b51a970-ea93-11e5-87dc-00000aab0f6b&acdnat=1458035638_8697408b40c8a29b3bb1eb22baa9221f