Hans Irschik,
"Nonstationary Random Vibrations of Yielding Multi-Degree-of-Freedom Systems: Method of Effective Envelope Functions."
, in Acta Mechanica, Vol. 60, Seite(n) 265-280, 1986
Original Titel:
Nonstationary Random Vibrations of Yielding Multi-Degree-of-Freedom Systems: Method of Effective Envelope Functions.