Stellar triangulation with balloon-borne beacons.
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
Helsinki
Finnish Geodetic Institute
1973.
|
| Sraith: | Suomen geodeettisen laitoksen julkaisuja
n:o 76. |
| Ábhair: |