 In this work, we improve several bounds on the lightness and sparsity of Euclidean Steiner (1+ \epsilon )-spanners.
<meaning-changed>  In this work, we improve several bounds on the lightness and sparsity of Euclidean Steiner (1+ \epsilon )-spanners.
 In this work, we improve several bounds on the lightness and sparsity of Euclidean Steiner (1+ \varepsilon )-spanners.