@incollection{49997, author = {Gadenst├Ątter, C. and Mayer, D. and Eder, T. and Nierhaus, G. }, title = {Clemens Gadenst├Ątter/Hidden Grammars}, publisher = {Springer}, year = {2015} ,address = {Dordrecht (Niederlande)} ,month = 02 ,note = {procedure: without peer reviewing} }