TY - JOUR AU - Adrian Vulpe AU - Florin Macavei TI - Topological formulations in establishing flexibility matrix for space frames JO - Theoretical and applied mechanics PY - 1976 SP - 131 VL - 2 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAM_1976_2_1_a16/ LA - en ID - TAM_1976_2_1_a16 ER -