 Complete the following phrase:  The tournament was first held in 1960, but there were no hat-tricks in any of the first four editions. In the semi-finals of the 1976 competition, Dieter Müller scored the first hat-trick in his first international game, as West Germany came from behind to defeat Yugoslavia 42 after extra time. Four years later, his compatriot Klaus Allofs scored the second hat-trick, in a 32 group stage win over the Netherlands. The first tournament to see more than one hat-trick was in 