The systematic analysis of the transformation between the German geodetic reference system (DHDN, DHHN) and the ETRF system (DREF91)
Crossref DOI link: https://doi.org/10.1186/BF03352310
Published Online: 2014-06-24
Published Print: 2000-11
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Cai, Jianqing
