Berghuis, J. (1955). The method of critical regions for twodimensional integrals and its application to a problem of antenna theory. Uitgeverij Excelsior.
Chicago-referens (17:e uppl.)Berghuis, J. The Method of Critical Regions for Twodimensional Integrals and Its Application to a Problem of Antenna Theory. 's-Gravenhage: Uitgeverij Excelsior, 1955.
MLA-referens (8:e uppl.)Berghuis, J. The Method of Critical Regions for Twodimensional Integrals and Its Application to a Problem of Antenna Theory. Uitgeverij Excelsior, 1955.
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