Vestfrid, I. A. (2001) “Isometric Imbedding of Some Metric Spaces in l<sub class="a-plus-plus">p</sub&gt;-Spaces”, Ukrains’kyi Matematychnyi Zhurnal, 53(12), pp. 1718-1723. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4389 (Accessed: 25May2024).