BibTeX

@ARTICLE{iumj22023,
    author = "S. Isaak",
     title = "A Sufficient Condition for Further Reduction of Unknowns in the Einstein-Maxwell Field Equations in the Case of the Characteristic [(11)11]",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 22,
      year = 1973,
     issue = 3,
     pages = "287--292",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj22023}{article}{
     author = {Isaak, S.},
      title = {A Sufficient Condition for Further Reduction of Unknowns in the Einstein-Maxwell Field Equations in the Case of the Characteristic [(11)11]},
    journal = {Indiana Univ. Math. J.},
     volume = {22},
       year = {1973},
     number = {3},
      pages = {287 \ndash 292},
}