Encyclopedia Britannica
Rubricon - free access to electronic versions of Russian encyclopedias and dictionaries
The Encyclopedia of Life Support Systems (EOLSS) - an integrated compendium
of 16 encyclopedias containing 185 theme volumes and about 55 millions of
words (see EOLSS Table of Contents). Includes the Theme volume "Control Systems, Robotics and Automation" (see Table of Contents, PDF, 205 KB)
with 239 planned contributions by worldwide known scholars, comprised by Honorary Theme Editor Prof. Heinz Unbehauen.
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