<style face="normal" font="default" size="100%">Structure of high-resolution <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>K</mi><msub><mi>$\beta$</mi><mrow><mn>1</mn><mo>,</mo><mn>3</mn></mrow></msub></mrow></math> x-ray emission spectra for the elements from Ca to Ge</style>

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