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| 040 | _cLIBRARY | ||
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_98533 _aAbbasi, S. S |
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_aModelling and simulation of biogas systems economics _c S. S Abbasi |
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| 260 | _cc.1993 | ||
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_98539 _bElectrical engineering _xEE |
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_2ddc _cBK |
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_c66051 _d66051 |
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