A computer method of fitting surfaces to assay and other data in three dimensions by quadratic-regression analysis

Author:	Link, Richard F.,
Additional Authors:	Koch, George S., Yabe, Norman N.
Year:	1966
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:6876
Series:	Report of investigations / United States. Bureau of Mines ;
Report Number:	6876
Subjects:	Assaying
	Ores--Sampling and estimation
Link:	https://hdl.handle.net/2027/mdp.39015078476762