ESTONIAN ACADEMY
PUBLISHERS
eesti teaduste
akadeemia kirjastus
cover
Proceedings of the Academy of Sciences of the Estonian SSR. Physics. Mathematics
КАЖУЩАЯСЯ ФОРМА НЕБЕСНОГО СВОДА; pp. 22–35
PDF | https://doi.org/10.3176/phys.math.1978.1.04

Author
Paul Kard
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