According to "Moskovskij Komsomolets" (1978). It was second hit parade in the USSR
"Soyuz 28 (Russian: Союз 28, Union 28) was a 1978 Soviet manned mission to the orbiting Salyut 6 space station. It was the fourth mission to the station, the third successful docking, and the second visit to the resident crew launched in Soyuz 26.
Cosmonaut Vladimír Remek from Czechoslovakia became the first person launched into space who was not a citizen of the United States or the Soviet Union. The other crew member was Aleksei Gubarev. The flight was the first mission in the Intercosmos program that gave Eastern Bloc and other communist states access to space through manned and unmanned launches"