Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The tournament was played on the round-robin format. A team had to play match with all the other teams. The final standings were according to the standing in the group table.
Matches were played in sets, the team that wins two sets is the winner of a match. When teams were equal in points the head-to-head result was decisive.