add kp literature

diff --git a/bibdb/bibdb.bib b/bibdb/bibdb.bib
index 3833d9b..dc27b7f 100644 (file)
--- a/bibdb/bibdb.bib
+++ b/bibdb/bibdb.bib
@@ -5517,3 +5517,16 @@
   year =         "2001",
   notes =        "configuration-interaction method, ci",
 }
+
+@Article{robertson90,
+  author =       "I. J. Robertson and M. C. Payne",
+  title =        "k-point sampling and the k.p method in pseudopotential
+                 total energy calculations",
+  journal =      "Journal of Physics: Condensed Matter",
+  volume =       "2",
+  number =       "49",
+  pages =        "9837",
+  URL =          "http://stacks.iop.org/0953-8984/2/i=49/a=010",
+  year =         "1990",
+  notes =        "kp method",
+}