Index: doc/bibliography/pl.bib
===================================================================
--- doc/bibliography/pl.bib	(revision 29db7239b8192d870e72ad96c020f2db4b40c2bc)
+++ doc/bibliography/pl.bib	(revision 81e8ab00cb49d1a0ae230e86de7686f659ec61fb)
@@ -5205,6 +5205,5 @@
     year	= 1984,
     series	= {Computers and their Applications},
-    address	= {Market Cross House, Cooper Street, Chichester, West Sussex,
-	PO19 1EB, England},
+    address	= {Market Cross House, Cooper Street, Chichester, West Sussex, PO19 1EB, England},
     summary	= {
         The principles of Procedural Abstraction, Data Type Completeness,
@@ -5258,12 +5257,16 @@
 }
 
-@book{PowerPC,
-    key		= {PowerPC processor},
-    title	= {Programming Environments Manual for 32-Bit Implementations of the PowerPC ArchitectureARM Architecture},
-    publisher	= {Freescale Semiconductor},
-    volume	= {MPCFPE32B},
-    edition	= {Rev. 3},
-    month	= 9,
-    year	= 2005,
+@inproceedings{Rafkind09,
+    keywords	= {accurate, C programming language, conservative, garbage collection, precise},
+    contributer	= {pabuhr@plg},
+    author	= {Rafkind, Jon and Wick, Adam and Regehr, John and Flatt, Matthew},
+    title	= {Precise Garbage Collection for C},
+    booktitle	= {Proceedings of the 2009 International Symposium on Memory Management},
+    series	= {ISMM '09},
+    year	= {2009},
+    location	= {Dublin, Ireland},
+    pages	= {39-48},
+    publisher	= {ACM},
+    address	= {New York, NY, USA},
 }
 
@@ -5338,6 +5341,5 @@
 
 @article{psa:persistence,
-    keywords	= {persistence, first-class procedures, closure, PS-Algol,
-	Abstract Data Types},
+    keywords	= {persistence, first-class procedures, closure, PS-Algol, Abstract Data Types},
     contributer	= {gjditchfield@plg},
     author	= {Malcolm P. Atkinson and Ronald Morrison},
@@ -5370,6 +5372,5 @@
 
 @article{Procol89,
-    keywords	= {active objects, object-oriented languages,
-	object-based languages, explicit per-object protocol},
+    keywords	= {active objects, object-oriented languages, object-based languages, explicit per-object protocol},
     contributer	= {akgoel@plg},
     author	= {Jan van den Bos and Chris Laffra},
@@ -5383,4 +5384,14 @@
     note	= {Proceedings of the OOPSLA'89 Conference, Oct. 1--6, 1989, New Orleans, Lousiana},
     abstract	= {},
+}
+
+@book{PowerPC,
+    key		= {PowerPC processor},
+    title	= {Programming Environments Manual for 32-Bit Implementations of the PowerPC ArchitectureARM Architecture},
+    publisher	= {Freescale Semiconductor},
+    volume	= {MPCFPE32B},
+    edition	= {Rev. 3},
+    month	= 9,
+    year	= 2005,
 }
 
@@ -6075,5 +6086,5 @@
 
 @inproceedings{Leissa14,
-    title	= {Sierra: a SIMD extension for C++},
+    title	= {{S}ierra: a {SIMD} extension for {C}++},
     author	= {Lei{\ss}a, Roland and Haffner, Immanuel and Hack, Sebastian},
     booktitle	= {Proceedings of the 2014 Workshop on Workshop on programming models for SIMD/Vector processing},