@inbook {MATHEDUC.06385457,
author = {Ejersbo, Lisser Rye},
title = {Research based teaching.},
year = {2009},
booktitle = {Nordic research in mathematics education. Proceedings from NORMA 08, the 5th Nordic conference on mathematics education, Copenhagen, Denmark, April 21--25, 2008},
isbn = {978-90-8790-781-5},
pages = {221-222},
publisher = {Rotterdam: Sense Publishers},
msc2010 = {D40xx},
identifier = {2015a.00397},
}