Hans Irschik, Helmut Holl,
"Lagrange´s equations for open systems, derived via the method of fictitious particles, and written in the Lagrange description of continuum mechanics"
, in Acta Mechanica, Vol. 226, Nummer 1, Seite(n) 63-79, 2015, ISSN: 0001-5970
Original Titel:
Lagrange´s equations for open systems, derived via the method of fictitious particles, and written in the Lagrange description of continuum mechanics