TY  - RPRT
TI  - [Continuous performance control in education and instruction. 3. Experiences in programmed performance control in orthodontics--biostatistical studies on 1097 theoretical performance examination].
AU  - R Krämer
AU  - G Mühlberg
PY  - 1972
UR  - https://pubmed.ncbi.nlm.nih.gov/4512004/
ID  - 4512004
ER  -