Background
Zirker, Hans was born on March 17, 1935 in Ludwigshafen, Germany.
Zirker, Hans was born on March 17, 1935 in Ludwigshafen, Germany.
Total harmonic distortion Mainz, Germany, 1964.
Teacher, Grunstadt (Germany) H.S., 1964-1971; consultant, Institute Lehrerfortbildung, Mainz, 1971-1974; professor, College Education, Neuss, Germany, 1974-1980; professor, U. Duisburg, Germany, 1980-1993; professor, U. Essen, Germany, since 1993.