TY  - RPRT
TI  - [Studies on the problem "Sid" and "Cad"].
AU  - O Prokop
AU  - N Nenkov
AU  - A Rackwitz
PY  - 1974
UR  - https://pubmed.ncbi.nlm.nih.gov/4549534/
ID  - 4549534
ER  -