Änderungen

| homepage =http://www.math.lmu.de/~didaktik/index.php?ordner=sommerho&data=start   

| homepage =http://www.math.lmu.de/~didaktik/index.php?ordner=sommerho&data=start   

| dissertation =The Individual Cognitive Resources Underlying Students' Mathematical Argumentation and Proof Skills

| dissertation =The Individual Cognitive Resources Underlying Students' Mathematical Argumentation and Proof Skills

| promoviert =  

| promoviert = ja

| email =sommerhoff@math.lmu.de  

| email =sommerhoff@math.lmu.de  

| MGP-ID =   

| MGP-ID =