5003543661
acoustical properties (300065581) 'involves' acoustics concepts (300056059);
changeNote
5003543661
acoustical properties (300065581) 'involves' acoustics concepts (300056059);
description
acoustical properties (300065581) 'involves' acoustics concepts (300056059);
type
relation added
startedAtTime
2014-01-03T18:25:41