TY - JOUR AU - D. V. Ivanov AU - S. E. Kozlov TI - Classification of totally geodesic surfaces in the manifold of directions in physical space JO - Zapiski Nauchnykh Seminarov POMI PY - 2001 SP - 163 EP - 172 VL - 280 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2001_280_a9/ LA - ru ID - ZNSL_2001_280_a9 ER -