found: nuc85-68698: His Über den Stufenaufbau ... [MI] 1977(hdg. on NN rept.: Törner, Günter, 1947- ; usage: Günter Törner)
found: His Eine Klassifizierung von Hjelmslev-Ringen ... 1974:t.p. (Günter Törner)
found: Beliefs and mathematics : festschrift in honor of Guenter Toerner's 60th birthday:ECIP t.p. (Guenter Toerner) chapter 1 (dob July 29, 1947)
found: Proficiency and beliefs in learning and teaching mathematics, 2013:title page (Günter Törner) page 311 (Full Professor with the Faculty of Mathematics at University Duisburg-Essen in Germany)