Short answers, pulled from the story.
The first phase of the Conference on Security and Cooperation in Europe convened at Finlandia Hall in Helsinki from July 3 to the 7th of July 1973. This initial meeting served to map out the second phase of negotiations without making political decisions.
Agostino Casaroli, Cardinal State Secretary of the Holy See, chaired the final phase of the summit held at Finlandia Hall. Helmut Schmidt began signing the document while Yugoslav President Josip Broz Tito completed it on the 1st of August 1975.
Only Albania refused participation in the early stages of the Conference on Security and Cooperation in Europe by aligning itself with China's position. Albania's President Ramiz Alia finally signed the OSCE Accord on the 16th of September 1991 after missing the original 1975 summit.
The Organisation for Security and Cooperation in Europe officially replaced the CSCE in 1994 as a permanent institution. This transformation marked the end of the conference-based structure that had operated since 1973.
The final document contained four main sections covering security issues, economic cooperation, humanitarian fields, and future follow-up mechanisms. The first section guaranteed integrity of borders resulting from World War II and the 1947 Paris Peace Treaty.