%0 Journal Article %T Completeness of the set \(\{e^{ik\beta \cdot s}\}|_{\forall \beta \in S^2}\) %A Alexander G. Ramm %J - %D 2017 %R 10.14419/gjma.v5i2.7975 %U https://www.sciencepubco.com/index.php/GJMA/article/view/7975