TY  - GEN
TY  - GEN
T1  - Astronomische Nachrichten
LA  - eng
UL  - https://kansalliskirjasto.finna.fi/Record/nelli06.954925382053
KW  - Engineering : Aerospace and Aeronautics
KW  - Physics : Astronomy
KW  - Physics : Astrophysics
ER  -