TY  - RPRT
TI  - Some problems of the 70's.
AU  - W A Carson
PY  - 1971
DO  - 10.5694/j.1326-5377.1971.tb87937.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5576809/
ID  - 5576809
ER  -