```tex
@Manual{BHK,
  title = 	 {{\tt deal.{I}{I}} Differential Equations Analysis Library,
                  Technical Reference},
  author = 	 {Wolfgang Bangerth and Ralf Hartmann and Guido Kanschat},
  organization = IWR,
  month = 	 apr,
  year = 	 {2001},
  note =         {\texttt{http://gaia.iwr.uni}-\texttt{heidelberg.de/\~{}deal/}},
  url =          {http://gaia.iwr.uni-heidelberg.de/~deal/}
}
```

Remove date of deal.II homepage reference.
user
```tex
@Manual{BHK,
  title = 	 {{\tt deal.{I}{I}} Differential Equations Analysis Library,
                  Technical Reference},
  author = 	 {Wolfgang Bangerth and Ralf Hartmann and Guido Kanschat},
  organization = IWR,
  note =         {\texttt{http://gaia.iwr.uni}-\texttt{heidelberg.de/\~{}deal/}},
  url =          {http://gaia.iwr.uni-heidelberg.de/~deal/}
}
```
assistant