> Multivolume work
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7:
Concordantia in patres apostolicos 7 Polycarpi et secundae epistulae Clementis Romani concordantiae curavit Angel Urbán
Hildesheim: Olms-Weidmann, 2001
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6:
Concordantia in patres apostolicos 6 Ignatii epistularum concordantia curavit Angel Urbán
Hildesheim: Olms-Weidmann, 2001
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5:
Concordantia in patres apostolicos 5 Hermae Pastoris concordantia curavit Angel Urbán
Hildesheim: Olms-Weidmann, 1999
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4:
Concordantia in patres apostolicos 4 Barnabae epistulae concordantia curavit Angel Urbán
Hildesheim: Olms-Weidmann, 1996
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3:
Concordantia in patres apostolicos 3 Primae epistulae Clementis Romani ad Corinthios concordantia curavit Angel Urbán
Hildesheim: Olms-Weidmann, 1996
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2:
Concordantia in patres apostolicos 2 Concordantia in Didachen (doctrina duodecim apostolorum) curavit Angel Urbán
Hildesheim: Olms-Weidmann, 1993
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1:
Concordantia in patres apostolicos 1 Concordantia in epistulam ad Diognetum curavit Angel Urbán
Hildesheim: Olms-Weidmann, 1993