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David W. Bishop: ngc6956-SN
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David W. Bishop: PSNJ0913388+7628108 20130902 Antonio Giambersio
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David W. Bishop: 2013ej 20131107 Antonio Giambersio
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David W. Bishop: SN 2017 egm
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David W. Bishop: ngc3643 SN2020hvf
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David W. Bishop: m61 SN2020jfo
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David W. Bishop: M085 SN2020nlb
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David W. Bishop: ngc4457 SN2020nvb