| http://www.w3.org/ns/prov#value | - The electrophoretically mobile particles, which have a diameter of between 0.1 and 20 ??m, preferably between 0.3 and 10 ??m, particularly preferably between 0.4 and 5 ??m, can be produced in accordance with WO 98/41898, WO 98/41899 or WO 98/0396.
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