by Iafolla, V., Lucchesi, D.M., Nozzoli, S., Ravenna, M., Santoli, F., Shapiro, I.I., Lorenzini, E.C., Cosmo, M.L., Bombardelli, C., Ashenberg, J., Cheimets, P.N., Glashow, S.
Published in Advances in space research (01.04.2011)

by Ashenberg, J., Broucke, R.A.
Published in Advances in space research (01.01.1993)

by Ashenberg, Joshua, Lorenzini, Enrico C
Published in Classical and quantum gravity (21.04.2004)

by Ashenberg, Joshua, Lorenzini, Enrico C.
Published in Acta astronautica (01.11.1999)

by Ashenberg, Joshua
Published in Acta astronautica (1996)

by Ashenberg, J, Broucke, R A
Published in Advances in space research (01.08.1993)

by Ashenberg, J., Broucke, R.A.
Published in Advances in space research (1994)