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  1. By: Zweifel, Richard George,
    Publication info: New York, N.Y, American Museum of Natural History, c1979
    Holding Institution: American Museum of Natural History Library
    Subjects: Amphibians  Classification  Cophixalus  Cophixalus kaindiensis  Frogs  New Guinea  Papua New Guinea
  2. By: Zweifel, Richard George, - Allison, Allen.
    Publication info: New York, N.Y, American Museum of Natural History, c1982
    Holding Institution: American Museum of Natural History Library
    Subjects: Amphibians  Aphantophryne  Classification  Cophixalus  Cophixalus sphagnicola  Frogs  New Guinea  Papua New Guinea
  3. By: Zweifel, Richard George, - Parker, Fred
    Publication info: New York, N.Y, American Museum of Natural History, c1977
    Holding Institution: American Museum of Natural History Library
    Subjects: Amphibians  Australia  Classification  Cophixalus  Cophixalus saxatilis  Frogs  Queensland
  4. By: Zweifel, Richard George, - Shelly, O.
    Publication info: New York, N.Y, American Museum of Natural History, [1956]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.78M(95)  Amphibians  Classification  Cophixalus  Frogs  New Guinea  Papua New Guinea  
  5. By: Zweifel, Richard George, - Archbold Expedition to New Guinea (1959) - Spalding-Peterson Expedition
    Publication info: New York, N.Y American Museum of Natural History [1962]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.78M(95)  Amphibians  Classification  Cophixalus  Frogs  New Guinea  
  1. By: Kraus, Fred - Allison, Allen.
    Type: Article
    In: ZooKeys
    Volume: 26
    Date: 2009
    Page Range: 53-76
    Publication Info: Pensoft Publishers 2009
    Subjects: Albericus  cave  Cophixalus  Oreophryne  Southern Highlands  
  2. By: Günther, Rainer - Richards, Stephen - Tjaturadi, Burhan - Krey, Keliopas
    Type: Article
    In: Zoosystematics and evolution
    Volume: 91
    Issue: 2
    Date: 2015
    Page Range: 199--213
    Publication Info: Sofia, Pensoft,
    Subjects: Asterophryinae  bioacoustics  Cophixalus  Morphology  new species