@book{ Solr-20056, title = {Newton : grabitatea ekinean / Jordi Bayarri ; kolorea, Daniel Seijas ; [itzulpena, Maialen Berasategi]}, series = {Zientzialariak (Ikaselkar)}, author = {Bayarri, Jordi}, editor = {Seijas, Daniel}, editor = {Berasategi, Maialen}, address = {Donostia}, publisher = {Ikaselkar}, year = {2015}, url = {http://www.ikaselkar.eus/produktua/newton-zientzilariak-3/} }