Dahlke, S., Novak, E., & Sickel, W. (2006). Optimal Approximation of Elliptic Problems by Linear and Nonlinear Mappings I.
Chicago Style (17th ed.) CitationDahlke, Stephan, Erich Novak, and Winfried Sickel. Optimal Approximation of Elliptic Problems by Linear and Nonlinear Mappings I. 2006.
MLA (9th ed.) CitationDahlke, Stephan, et al. Optimal Approximation of Elliptic Problems by Linear and Nonlinear Mappings I. 2006.
Warning: These citations may not always be 100% accurate.