TY - JOUR AU - Švec, Alois TI - On the rigidity of certain surfaces in $E^5$ JO - Czechoslovak Mathematical Journal PY - 1977 SP - 250 EP - 257 VL - 27 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1977.101465/ DO - 10.21136/CMJ.1977.101465 LA - en ID - 10_21136_CMJ_1977_101465 ER -