Dmitry Medvedev brought documentation to VASO First Deputy Prime Minister Dmitry Medvedev paid a visit yesterday to the Voronezh Joint-Stock Aircraft Manufacturing Company (VASO). Thus, he joined a long line of high-ranking officials who had been here before him. For example, of the post-Soviet heads of the Russian government, all of them made working trips to VASO, with the exception of the very first, Yegor Gaidar, the current one, Viktor Zubkov, and Mikhail Kasyanov.