TY  - RPRT
TI  - [Changes in the reference system exemplified by a visual assessment task].
AU  - G Junghanns
AU  - P Ullsperger
AU  - A M Metz
PY  - 1988
UR  - https://pubmed.ncbi.nlm.nih.gov/2906773/
ID  - 2906773
ER  -