In the 1980s and 1990s Duka co-produced and 

co-engineered many releases for 

his pioneering record label Zasko Lab

 

For the albums of those bands 

he composed, arranged and played 

piano, keyboards and electronics. 

for Zasko Lab Records:

Maskim - Maskim (1992)

Desecration - The valley of the eternal suffering (1993)

Shoggoth - Past Present (1993)

Out of Order - Out of Order (1993)

Mindscape - Get used to it (1994)

Infamia - Infamia (1994)

Outrose - Giostra (1994)

Shoggoth - Esprit Nouveau (1995)

Headless - Future to past (1996)