TY  - RPRT
TI  - Video endoscopy. Fundamentals and problems.
AU  - L Demling
AU  - H J Hagel
PY  - 1985
DO  - 10.1055/s-2007-1018491
UR  - https://pubmed.ncbi.nlm.nih.gov/4054060/
ID  - 4054060
ER  -