Linear inequalities via least squares
Übi, Evald
Proceedings of the Estonian Academy of Sciences
2013
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p. 238-248
https://artiklid.elnet.ee/record=b2651803*est
Solving linear programming problems via weighted least-squares method
Übi, Evald
;
Übi, Jaan
IJRDO - Journal of mathematics
2017
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p. 13-21
https://ijrdo.org/index.php/m/article/view/1563/1473