BibTeX

@ARTICLE{iumj7462,
    author = "Peter Howard",
     title = "The Maslov and Morse indices for Schrodinger operators on R",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 67,
      year = 2018,
     issue = 5,
     pages = "1765--1815",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj7462}{article}{
     author = {Howard, Peter},
      title = {The Maslov and Morse indices for Schrodinger operators on R},
    journal = {Indiana Univ. Math. J.},
     volume = {67},
       year = {2018},
     number = {5},
      pages = {1765 \ndash 1815},
}