TY  - RPRT
TI  - Systemic optimism--systemic pessimism: two perspectives on change.
AU  - H Stierlin
PY  - 1988
DO  - 10.1111/j.1545-5300.1988.00121.x
UR  - https://pubmed.ncbi.nlm.nih.gov/3396679/
ID  - 3396679
ER  -