Oleg Popov
http://www.educ.umu.se/~popov/
Umeå Univeristy
Department of Mathematics, Technology and Science Education
PhD
Senior lecturer
The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).
If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.
Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.