 
                            ...
| [Goodin 2009] | |
| [Jack 2007] | |
| [Liu 2009] | |
| [van Sprundel 2006] | |
| [Viega 2005] | Section 5.2.18, "Null-Pointer Dereference" | 
...
png_charp
 
                            ...
| [Goodin 2009] | |
| [Jack 2007] | |
| [Liu 2009] | |
| [van Sprundel 2006] | |
| [Viega 2005] | Section 5.2.18, "Null-Pointer Dereference" | 
...
png_charp