. Eesti Looduseuurijate Seltsi aastaraamat . (3) YpaBHeHm (1) h (2) ^onycKaioTT, ojii^yioiHie HHTerpajiti: ' r12 + T22 + rs2=i - Ap2 + Bq2+Cr2 — 2ar1 — 2br2 — 2cr3 = H2 ÄPTi + Bqy2 + Crr3 = H$ 3

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Keywords: ., bookcentury1900, bookcontributorunive, booksubjectnaturalhistory