1
by Herzberg, Isaak
Published 1929
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3
by Herzberg, Isaak
Published 1929
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4
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6
by Fechner, Jörg-Ulrich
Published in Philobiblon (1989)
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7
by Berwin, Beate
Published 1919
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8
Published 1994
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10
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11
by Engel, Eva J.
Published 1994
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12
Published 2006
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13
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14
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16
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17
Published 2001
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18
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19
Published 2000
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20
Published 1998
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