{"id":"002060956","type":"article","title":"In search of frequency","publisher":"Deutsches Bergbau-Museum","publisher-place":"Bochum","pages":"33-41","container-title":"Metalla, 25,1 (2019","author":[{"family":"Schorpp","given":"Alexandra"},{"family":"Braun","given":"Miriam"},{"family":"Fischer","given":"Andrea"},{"family":"Eggert","given":"Gerhard"}],"issued":{"raw":"2019"}}