Source Basic Law for the Federal Republic of Germany (Wikipedia)
Source Christian Social Union in Bavaria (Wikipedia)
This source names Germany directly: "and the distribution of ministries. Germany, the Netherlands and most Nordic legislatures have governed through coalition for most of their postwar histories, while Israel has not had a single-party..."
Source Coalition Government (Britannica)
The Germanic Confederation (1815-1866), a loose association of German states after the Congress of Vienna, is a documented historical confederation.
Source Encyclopedia.com: Confederations
This source names Germany directly: "1920 constitution, and later spread to Germany, Italy, South Korea and many other countries as an alternative to judicial review by an ordinary supreme court."
Source Hans Kelsen (Britannica)
Germany is discussed as an "integrated" federal structure, contrasted with the US "dualistic" model.
Source Center for the Study of Federalism: What is Federalism?
This source names Germany directly: "country overview article for Germany, covering its formation, government and history."
Source Germany (Britannica)
This source names Germany directly: "1945, to try major officials of Nazi Germany for war crimes committed during the Second World War."
Source International Military Tribunal at Nuremberg (USHMM)
Source Germany: The Original Mixed Member Proportional System (ACE Project)
Source Vote of Confidence (Britannica)
This source names Germany directly: "ideology and rise to power in Germany."
Source Nazi Party (Britannica)
This source names Germany directly: "proceedings that began in Nuremberg, Germany, in 1945, in which the victorious Allied powers, the United States, the United Kingdom, France, and the Soviet Union, prosecuted surviving leaders and..."
Source Nuremberg Trials (National WWII Museum)
This source names Germany directly: "was the first chancellor of a unified Germany, serving from 1871 to 1890."
Source Otto von Bismarck (Britannica)
Germany's additional-member system, adopted after World War II, is a party-list hybrid.
Source Systems of Proportionality (Britannica)
Germany adopted some direct-democracy elements after World War I.
Source Referendum and Initiative (Britannica)
This source names Germany directly: "the revisionism of Eduard Bernstein in Germany."
Source Social Democracy (Britannica)
This source names Germany directly: "Luxembourg, the Netherlands and West Germany, and in force from 23 July 1952 until its fifty-year term expired on 23 July 2002, this treaty established the European Coal and Steel Community, the..."
Source Treaty of Paris (1951) (Wikipedia)
This source names Germany directly: "Its modern institutional cornerstone was laid in Germany under Chancellor Otto von Bismarck, who enacted a sickness and maternity insurance law in 1883, a work-injury law in 1884, and an old-age..."
Source Welfare State (Britannica)
This source names Germany directly: "of the Social Democratic Party of Germany, a close collaborator of Marx and Engels in exile, who in 1896 coined the term state capitalism to distinguish mere state ownership of enterprise, such as..."
Source Our Recent Congress (Marxists Internet Archive)