@Article{rellich:der40, author = "F. Rellich", title = "Darstellung der {E}igenwerte von {$\Delta u + \lambda u = 0$} durch ein {R}andintegral", journal = "Math Z.", year = "1940", volume = "46", pages = "635--636", annote = "rellich identity", } @Book{zeidler:nfa88IIa, author = "E. Zeidler", title = "Nonlinear {F}unctional {A}nalysis", publisher = "Springer Verlag", year = "1988", volume = "IIa", address = "New York", annote = "BIF", } @book{ lamport , author = "Leslie Lamport" , title = "\LaTeX: A Document Preparation System" , publisher = "Addison--Wesley Pub.\ Co." , year = "1986" , address = "Reading, MA" } @book{ knuth , author = "Donald E. Knuth" , title = "The \TeX book" , publisher = "Addison--Wesley Pub.\ Co." , year = "1984" , address = "Reading, MA" } @book{ goossens , author = "Michel Goossens and Frank Mittelbach and Alexander Samarin" , title = "The \LaTeX Companion" , publisher = "Addison--Wesley Pub.\ Co." , year = "1994" , address = "Reading, MA" }