The Increased Difficulty of Concentration. New York / The Repertory Theater of Lincoln Center
- Document's type: Programme
- Author: Václav Havel (Author) / Mel Shapiro (Director) / Věra Blackwell (Translation)
- Date of origin: 1. 12. 1969
- Record's ID: 10064
The Garden Party
- Document's type: Book / Drama
- Author: Václav Havel (Author) / Věra Blackwell (Translation)
- Date of origin: 1969
- Record's ID: 39323
Smlouva: Grove Press - Václav Havel + Vera Blackwell / Ztížená možnost soustředění
- Document's type: Contract
- Author: Václav Havel (Author) / Věra Blackwell (Translation)
- Date of origin: 30. 12. 1969
- Record's ID: 17773