I. Kotsireas, Josef Schicho,
"A computer algebra solution to a planar Newtonian 4-body problem with unequal masses"
, Serie SFB F013 Reports, Nummer 00-10, SFB-Report, Linz, 10-2000, I. Kotsireas, J. Schicho SFB-Report
Original Titel:
A computer algebra solution to a planar Newtonian 4-body problem with unequal masses