TY  - JOUR
AU  - V. T. Fomenko
TI  - Some properties of two-dimensional surfaces with zero normal torsion in $E^4$
JO  - Sbornik. Mathematics
PY  - 1979
SP  - 251
EP  - 265
VL  - 35
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/SM_1979_35_2_a6/
LA  - en
ID  - SM_1979_35_2_a6
ER  -