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Evaluation of new couplers for circumaural earphones.
Charan KK, Cox JR Jr, Niemoeller AF. Charan KK, et al. J Acoust Soc Am. 1965 Dec;38(6):945-55. doi: 10.1121/1.1909850. J Acoust Soc Am. 1965. PMID: 5846587 No abstract available.