TY  - RPRT
TI  - Explicating activity theory: a formal replication.
AU  - C F Longino
AU  - C S Kart
PY  - 1982
DO  - 10.1093/geronj/37.6.713
UR  - https://pubmed.ncbi.nlm.nih.gov/7130646/
ID  - 7130646
ER  -