TY  - BOOK
ED  - Eltro
TI  - General Remarks on Infrared Active and Passive Units and their Practical Application 
U1  - 621.362 
PY  - 1969///
CY  - Heidelberg : 
PB  - Eltro, 
KW  - Infrared Radiation
KW  - Infrared Spectra
N1  - NN
ER  -