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Washington, DC, 1974 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1972 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Washington, DC, 1974 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1971 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1972 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Washington, DC, 1971 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1973 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1973 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1974 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1973 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1973 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1974 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1974 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Oxford University Press (OUP), 1978
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Springer Science and Business Media LLC, 2020
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MDPI AG, 2020
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Springer Science and Business Media LLC, 2017
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Elsevier BV, 2015
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SAGE Publications, 1995
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Institute of Electrical and Electronics Engineers (IEEE), 2012