+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+/* $Id$ */
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// AliGenGeVSim is a class implementing GeVSim event generator.
+//
+// GeVSim is a simple Monte-Carlo event generator for testing detector and
+// algorythm performance especialy concerning flow and event-by-event studies
+//
+// In this event generator particles are generated from thermal distributions
+// without any dynamics and addicional constrains. Distribution parameters like
+// multiplicity, particle type yields, inverse slope parameters, flow coeficients
+// and expansion velocities are expleicite defined by the user.
+//
+// GeVSim contains four thermal distributions the same as
+// MevSim event generator developed for STAR experiment.
+//
+// In addition custom distributions can be used be the mean
+// either two dimensional formula (TF2), a two dimensional histogram or
+// two one dimensional histograms.
+//
+// Azimuthal distribution is deconvoluted from (Pt,Y) distribution
+// and is described by two Fourier coefficients representing
+// Directed and Elliptic flow.
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// To apply flow to event ganerated by an arbitraly event generator
+// refer to AliGenAfterBurnerFlow class.
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// For examples, parameters and testing macros refer to:
+// http:/home.cern.ch/radomski
+//
+// for more detailed description refer to ALICE NOTE
+// "GeVSim Monte-Carlo Event Generator"
+// S.Radosmki, P. Foka.
+//
+// Author:
+// Sylwester Radomski,
+// GSI, March 2002
+//
+// S.Radomski@gsi.de
+//
+////////////////////////////////////////////////////////////////////////////////
+//
+// Updated and revised: September 2002, S. Radomski, GSI
+//
+////////////////////////////////////////////////////////////////////////////////
+
+
+class TFormula;
+class TF1;
+class TF2;
+class TH1D;
+class TH2D;
+class TObjArray;
+class AliGeVSimParticle;