rowid,id,year,session_id,ord,role,role_group,name_as_printed,affiliation_as_printed,paper_title,person_id,institution_id,source_document_id,page 14225,21113,2007,pdf:2007:N.21,1,Speakers,speaker,Z. Z. Lehmberg,"Northern Michigan University, Marquette",Role Concepts and their Influence on how We Respond to Student Texts,p:z-z-lehmberg,ror:01epvyf46,pdf-2007-2007__2007completeprogram.pdf,271