TY  - RPRT
TI  - Single-case research: when is it valid?
AU  - B H Connolly
AU  - R L Craik
AU  - D E Krebs
PY  - 1983
DO  - 10.1093/ptj/63.11.1767
UR  - https://pubmed.ncbi.nlm.nih.gov/6634942/
ID  - 6634942
ER  -