TY  - RPRT
TI  - Differences in problems of motivation in different special groups.
AU  - E S Kunnen
AU  - H W Steenbeek
PY  - 1999
DO  - 10.1046/j.1365-2214.1999.00106.x
UR  - https://pubmed.ncbi.nlm.nih.gov/10547706/
ID  - 10547706
ER  -