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   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Alar Toomre.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Erickson, Stanley Arvind</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">1974</dim:field>
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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1974.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Vita.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Bibliography: leaves 177-179.</dim:field>
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   	&lt;Title>Vibrations and instabilities of a disk galaxy with modified gravity.&lt;/Title>
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