00340nam a22000737a 4500245018200000260005800182300000900240650001700249  aIS 10776-2:1984- Methods of measurement of electro-acoustical characteristics of hearing aids, Part 2: Additional measurements for hearing aids with induction pick-up coil input  aNew Delhi :bBureau of Indian Standards (BIS),c1984.  a5 p.  aHearing aids