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Books about Heckl:
Structure-Borne Sound: Structural Vibrations and Sound Radiation at Audio Frequencies [Hardcover]  (Author... (2005)
Mit kollegialen Grüßen ...: Sprachdummheiten in der Medizin von Heckl, Reiner (2011) Taschenbuch by Reiner Heckl (1000)
Die Kultur der Reparatur von Heckl, Wolfgang M. (2013) Gebundene Ausgabe by Wolfgang M. Heckl (1000)
Wiki information Heckl:
A heckler is a person who harasses and tries to disconcert others with questions, challenges, or gibes. Hecklers are often known to shout disparaging comments at a performance or event, or to interrupt set-piece speeches, with the intent of...
Frank Heckl is an American former swimmer.