[2]
Optimal L ∞ -error estimates for nonconforming and mixed finite element methods of lowest order[J] . Lucia Gastaldi,Ricardo Nochetto.Numerische Mathematik . 1987 (5)
[2]
Optimal L ∞ -error estimates for nonconforming and mixed finite element methods of lowest order[J] . Lucia Gastaldi,Ricardo Nochetto.Numerische Mathematik . 1987 (5)