TY  - BOOK
AU  - Samsons,V.
AU  - Kalinka,Z.
ED  - Academy of Science
TI  - Academy of sciences of the Latvin SSR
U1  - 507.2094743 
PY  - 1977///
CY  - Riga
PB  - Pub. House "Zinatne"
KW  - Science
KW  - Study and teaching
KW  - Europe
ER  -