![](/img/cover-not-exists.png)
Primary state standard of the plane angle unit — The radian
M. G. Boguslavskii, V. M. Éliashberg, E. E. Sharova, L. I. FedotovaVolume:
15
Language:
english
Pages:
4
DOI:
10.1007/bf01100938
Date:
July, 1972
File:
PDF, 512 KB
english, 1972