000 00329nam a2200109Ia 4500
005 20250107154754.0
008 241216s9999||||xx |||||||||||||| ||und||
082 _aREF 526 GRA
245 0 _aGravity gradients and three dimensional net adjustments without ellipsoidal reference
260 _a Cambridge
_bNTIS,
_c1973
942 _cBK
999 _c5688
_d5688