BibTex format
@article{Aranberri:2003,
author = {Aranberri, I and Bismarck, A},
journal = {Elhuyar},
pages = {20--23},
title = {Etekin handiko materialak biharko gizartean},
url = {http://www.zientzia.net/informazioa/elhuyar/2003/187/pdf/A187_O20-23.pdf},
volume = {187},
year = {2003}
}