TY - JOUR AU - Ludwig Kohaupt TI - Optimal L...-Error Estimates for Piecewise Linear Finite Elements in Irn for 1...n...3. JO - Numerische Mathematik PY - 1986 SP - 353 EP - 362 VL - 50 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NUMA_1986__50_133159/ LA - en ID - NUMA_1986__50_133159 ER -