German Bundestag
A party gets seats when it gets at least 5% of the votes or 3 direct mandates. Every voter has two votes, one for a person and one for a party. 299 members each represent a constituency, just as in the British House of Commons or the US House of Representatives. The other half are elected from a party list in each Land. The total number of seats a party gets depends on the number of the second "party votes" it gets.