Bakan, A.G. 2003. Criterion for the Denseness of Algebraic Polynomials in the Spaces $L_p \left( {{\mathbb{R}},d {\mu }} \right)$, $1 ≤ p < ∞$. Ukrains’kyi Matematychnyi Zhurnal. 55, 5 (May 2003), 701–705.