A global behavior                                     

 

At a local level

                               

 

 

Some References:

(M3AS, 1993) , (M3AS, 1995),

 (JMPA, 1999), (M3AS, 2003),  (C.R.Mecanique,2003),

 (M2AS,2005) , (IMSE,2007), 

(JMPA, 2008)

 

 

 

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