TY  - RPRT
TI  - A novel, adaptable and inexpensive computerized activity meter.
AU  - H K Kulmala
AU  - J W Boja
AU  - J T Hutton
PY  - 1987
DO  - 10.1016/0361-9230(87)90137-7
UR  - https://pubmed.ncbi.nlm.nih.gov/3607533/
ID  - 3607533
ER  -