Updating...
888-987 in englischer Sprachfassung (Normativer Teil)..
EU 25 Other Europe Russia Other CIS United States Canada Latin America Japan China Other Asia AUS&NZL Middle East Africa. EU 25 Other Europe Russia Other CIS United States Canada
Where the authorities of a Member State in which a public document or its certified copy is presented have reasonable doubt as to their authenticity, which cannot be otherwise
We al- ways consider the Laplace operator − ∆ with Dirichlet boundary conditions; other elliptic operator can be considered, while consider- ing other boundary conditions (Neumann or