added literature

diff --git a/bibdb/bibdb.bib b/bibdb/bibdb.bib
index b5a1af2..8b4ca9f 100644 (file)
--- a/bibdb/bibdb.bib
+++ b/bibdb/bibdb.bib
@@ -5563,3 +5563,114 @@
   notes =        "quamol, basis set, for planc",
 }
 
+@Article{artacho91,
+  volume =       "43",
+  journal =      "Phys. Rev. A",
+  author =       "Emilio Artacho and Lorenzo Mil\'ans del Bosch",
+  month =        jun,
+  URL =          "http://link.aps.org/doi/10.1103/PhysRevA.43.5770",
+  doi =          "10.1103/PhysRevA.43.5770",
+  year =         "1991",
+  title =        "Nonorthogonal basis sets in quantum mechanics:
+                 Representations and second quantization",
+  issue =        "11",
+  publisher =    "American Physical Society",
+  pages =        "5770--5777",
+  notes =        "non-orthogonal basis set",
+}
+
+@Article{loewdin50,
+  author =       "Per-Olov L{\"{o}}wdin",
+  collaboration = "",
+  title =        "On the Non-Orthogonality Problem Connected with the
+                 Use of Atomic Wave Functions in the Theory of Molecules
+                 and Crystals",
+  publisher =    "AIP",
+  year =         "1950",
+  journal =      "The Journal of Chemical Physics",
+  volume =       "18",
+  number =       "3",
+  pages =        "365--375",
+  URL =          "http://link.aip.org/link/?JCP/18/365/1",
+  doi =          "10.1063/1.1747632",
+  notes =        "non orthogonal basis set",
+}
+
+@Article{loewdin68,
+  author =       "Per-Olov Löwdin",
+  title =        "Studies in perturbation theory {XIII}. Treatment of
+                 constants of motion in resolvent method, partitioning
+                 technique, and perturbation theory",
+  journal =      "International Journal of Quantum Chemistry",
+  volume =       "2",
+  number =       "6",
+  publisher =    "John Wiley & Sons, Inc.",
+  ISSN =         "1097-461X",
+  URL =          "http://dx.doi.org/10.1002/qua.560020612",
+  doi =          "10.1002/qua.560020612",
+  pages =        "867--931",
+  year =         "1968",
+}
+
+@Article{chadi77,
+  volume =       "16",
+  journal =      "Phys. Rev. B",
+  author =       "D. J. Chadi",
+  month =        oct,
+  URL =          "http://link.aps.org/doi/10.1103/PhysRevB.16.3572",
+  doi =          "10.1103/PhysRevB.16.3572",
+  year =         "1977",
+  title =        "Localized-orbital description of wave functions and
+                 energy bands in semiconductors",
+  issue =        "8",
+  publisher =    "American Physical Society",
+  pages =        "3572--3578",
+  notes =        "localized orbitals",
+}
+
+@Article{slater53,
+  volume =       "92",
+  journal =      "Phys. Rev.",
+  author =       "J. C. Slater",
+  month =        nov,
+  URL =          "http://link.aps.org/doi/10.1103/PhysRev.92.603",
+  doi =          "10.1103/PhysRev.92.603",
+  year =         "1953",
+  title =        "An Augmented Plane Wave Method for the Periodic
+                 Potential Problem",
+  issue =        "3",
+  publisher =    "American Physical Society",
+  pages =        "603--608",
+  notes =        "augmented plane wave method",
+}
+
+@Article{phillips59,
+  volume =       "116",
+  journal =      "Phys. Rev.",
+  author =       "James C. Phillips and Leonard Kleinman",
+  month =        oct,
+  URL =          "http://link.aps.org/doi/10.1103/PhysRev.116.287",
+  doi =          "10.1103/PhysRev.116.287",
+  year =         "1959",
+  title =        "New Method for Calculating Wave Functions in Crystals
+                 and Molecules",
+  issue =        "2",
+  publisher =    "American Physical Society",
+  pages =        "287--294",
+  notes =        "pseudo potential",
+}
+
+@Article{gonze91,
+  volume =       "44",
+  journal =      "Phys. Rev. B",
+  author =       "Xavier Gonze and Roland Stumpf and Matthias
+                 Scheffler",
+  month =        oct,
+  URL =          "http://link.aps.org/doi/10.1103/PhysRevB.44.8503",
+  doi =          "10.1103/PhysRevB.44.8503",
+  year =         "1991",
+  title =        "Analysis of separable potentials",
+  issue =        "16",
+  publisher =    "American Physical Society",
+  pages =        "8503--8513",
+}