Nasedkina, Y. S. “Conditions for a Submanifold $F^n$ from $E^{n + p}$ to Lie in $E^{2n − 1}$”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 68, no. 3, Mar. 2016, pp. 357-62, https://umj.imath.kiev.ua/index.php/umj/article/view/1843.