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   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">1953</dim:field>
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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1953.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Vita.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references (leaves 122-124).</dim:field>
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   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">Sc.D.</dim:field>
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