TY  - JOUR
AU  - G. I. Zhotikov
TI  - On the theory of the field of local conic surfaces in the composite tangent manifold $E_n(X_n)$ of first order.~I,~II
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1959
SP  - 64
EP  - 69
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1959_4_a8/
LA  - ru
ID  - IVM_1959_4_a8
ER  -