%0 Journal Article %A A. O. Korneeva %A A. P. Norden %T The isotropic normal congruences that are connected with curves of $n$-dimensional Lorentz space $L_n(n\geq 4)$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1974 %P 51-54 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1974_11_a6/ %G ru %F IVM_1974_11_a6