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1999 in science
English
1999 במדע
HE
1999 a tudományban
Hungarian
Науката во 1999 година
Macedonian
Vitskap i 1999
NN
Vitenskapsåret 1999
NB
1999 w nauce
Polish
1999 na ciência
Portuguese
1999 год в науке
Russian
Vetenskapsåret 1999
Swedish
1999 en science
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