|
| jgg
2015 35 (5):
771-774
ISSN: 0412-1961 CN: 21-1139/TG
|
|
|
|
|
|
|
| Research on the Helmert Variance Component Estimation
of Adjustment Method for Leveling-Network |
|
| Chengdu Institute of Survey and Investigation,70 North-Three Area Yihuan Road, Chengdu 610081, China |
| Received: 2014-08-12 Revised: null Online: 2015-10-10 |
Supporting info
|
|
|