Signs of SignificationNorma Presmeg, Luis Radford, Wolff-Michael Roth, Gert Kadunz · First published 2018Open the Tome
Cultural-Historical Perspective on Mathematics Teaching and LearningWolff-Michael Roth, Luis Radford · First published 2012Open the Tome
Semiotics in Mathematics EducationNorma Presmeg, Luis Radford, Wolff-Michael Roth, Gert Kadunz · First published 2008Open the Tome