Did you mean: Search also for broader subjects Search also for related subjects Search also for narrower subjects Åström, Karl J. (Karl Johan), 1934- Åström, Karl J. (Karl Johan), 1934- Automatic tuning of PID controllers ASTROM, KARL J WITTENMARK, BJORN Astrom, Karl Johan Wittenmark, Bjorn Astrom, Karl J Johan Astrom, Karl