1985
AL#2 p.20   BRB1 p.68            
Graham Caldersmith                                                                                           

▪ Caldersmith discusses the efficiency and pattern of sound radiation in the classic guitar produced by the four lower resonance modes, which he calls monopole, cross dipole, long dipole, and tripole. Mentions Tom Rossing, Gila Eban, Paul Wyzskowski, Fred Dickens, Michael Kasha, Richard Schneider, and Greg Smallman.