| ARCHIVE | SUBARCHIVE | UNITY | DOCUMENT TITLE | ENTITY TITLE | OCCUPATION |
| Spyros Sakkas Archive | Recordings | Unclassified | "HOLDERLIN GESANGE" "PLANE FOUR EINEN SOMMER" 1972 "7 MESOSTICS" 1972 | "HOLDERLIN GESANGE" "PLANE FOUR EINEN SOMMER" 1972 "7 MESOSTICS" 1972 | Composer |
| Spyros Sakkas Archive | Recordings | Unclassified | DUBLIN "HOLDERLIN GESANGE" "ΣΧΕΔΙΑ ΓΙΑ ΕΝΑ ΚΑΛΟΚΑΙΡΙ" | DUBLIN "HOLDERLIN GESANGE" "ΣΧΕΔΙΑ ΓΙΑ ΕΝΑ ΚΑΛΟΚΑΙΡΙ" | Composer |