 During the conference in 1979, Professor Zdzislaw Bubnicki decided to organize future conferences in Wroclaw every two years, and Professor Glyn James and his colleagues from the Coventry University in England suggested that they join a team from Wroclaw to organize the conferences in alternate years in Coventry.Consequently, the next edition in 1980 took place in Coventry.In 1983, Professor William Wells from the University of Nevada Las Vegas, USA and his colleagues joined the teams from Poland and England, and the next meeting in 1984 was organized in Las Vegas, USA.