agnes hussein-arco aiken, earl ak backstein 2000 albers, joseph albers, joseph * albert, gustav albiker, karl (2) alder, barbara aldinger, ursula alessandra melucco vaccaro, the getty conservation institute alloway, lawrence (3) alstine, john van alstine, john van * althaus, p f althoefer, heinz (13) althoeffer, heinz aluminium-zentrale ambrogi, annarena