1.
Nonlinear Gravitodynamics The Lense - Thirring Effect
by Ruffini, Remo, Sigismondi, ...
ISBN: 9789812383471
List Price: $124.00
2.
Doctissima Virgo: La Sapienza di Gerberto, scienziato e papa (Italian Edition)
by Costantino Sigismondi
ISBN: 9788895565675
List Price: $24.50