Complex sentence: The founding (and now honorary) president was Leonid Abalkin, with A.A.Nikonov, Yu.V.Yakovets, G.Pallavicini (Italy), and Yakob van Dein (Netherlands) as vice-presidents.
Split into simpler sentences: The founding (and now honorary) president was Leonid Abalkin, with A. A. Nikonov, Yu. V. Yakovets, G. Pallavicini (Italy), and Yakob van Dein (Netherlands) as vice-presidents.