pyafm/main.bib: Curly-brace 'HDF' in entry titles

Otherwise it is automatically sentence-cased by bibtex.

diff --git a/src/pyafm/main.bib b/src/pyafm/main.bib
index bbd99577aa7712f9bd25f544b77146e97e8d94ca..91eccde31cabaf8cd5607e7af4dad18542459cb4 100644 (file)
--- a/src/pyafm/main.bib
+++ b/src/pyafm/main.bib
@@ -143,14 +143,14 @@
 
 @misc{ hdf-group,
   author = HDFG,
-  title = {HDF Group History},
+  title = {{HDF} Group History},
   year = 2013,
   url = {http://www.hdfgroup.org/about/history.html},
 }
 
 @misc{ hdf-users,
   author = HDFG,
-  title = {Who uses HDF?},
+  title = {Who uses {HDF}?},
   year = 2013,
   url = {http://www.hdfgroup.org/users.html},
 }