Index: /qipapers.bib
===================================================================
--- /qipapers.bib	(revision 613)
+++ /qipapers.bib	(revision 614)
@@ -21404,2 +21404,9 @@
   author = {Schmeisser, M. and Heisen, B.C. and Luettich, M. and Busche, B. and Hauer, F. and Koske, T. and Knauber, K.-H. and Stark, H.}
 }
+@book{Frank2006,
+  edition = {2},
+  year = {2006},
+  title = {Three-Dimensional Electron Microscopy of Macromolecular Assemblies},
+  publisher = {Oxford University Press},
+  author = {Frank, J.}
+}