by Knopoff, D.A., Fernández, D.R., Torres, G.A., Turner, C.V.
Published in Computers & mathematics with applications (1987) (01.10.2013)

by Knopoff, D. A, Fernández, D. R, Torres, G. A, Turner, C. V
Year of Publication 13.09.2012

by Knopoff, D A, Fernández, D R, Torres, G A, Turner, C V
Published in arXiv.org (13.09.2012)