These shared details suggest a common source—perhaps a private screening at a Pfadiheim in 1988 that was never digitized.
It is widely condemned and, in many jurisdictions, its distribution or possession is restricted or illegal due to the age of the participants and the nature of the production. from that era, or are you interested in other German filmmakers who explored youth themes through a different lens?
Like much of Bleisch's work from that era, it was shot using basic equipment, giving it a grainy, documentary-like aesthetic common to East German underground productions of the time.
Would you like help interpreting what the software claims to measure, or finding scientific critiques of this technology instead?