BibTeX

@ARTICLE{iumj17070,
    author = "A. Pazy",
     title = "On the Differentiability and Compactness of Semi-Groups of Linear Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 17,
      year = 1968,
     issue = 12,
     pages = "1131--1141",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj17070}{article}{
     author = {Pazy, A.},
      title = {On the Differentiability and Compactness of Semi-Groups of Linear Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {17},
       year = {1968},
     number = {12},
      pages = {1131 \ndash 1141},
}