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@@ -13,10 +13,6 @@ in publications:
 
 * Olsson, Mats HM, Chresten R. Sondergaard, Michal Rostkowski, and Jan H. Jensen. "PROPKA3: consistent treatment of internal and surface residues in empirical pKa predictions." Journal of Chemical Theory and Computation 7, no. 2 (2011): 525-537. doi:[10.1021/ct100578z](https://doi.org/10.1021/ct100578z)
 
-See [propka.ki.ku.dk](http://propka.ki.ku.dk/) for the PROPKA web server,
-using the [tutorial](http://propka.ki.ku.dk/~luca/wiki/index.php/PROPKA_3.1_Tutorial).
-
-
 ## Installation
 
 Clone repository or unpack the tar ball and install with