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  1. By: Ngo, Hai Ngoc - Nguyen, Quang Truong - Nguyen, Tan Van - Schingen, Mona van - Ziegler, Thomas,
    Type: Article
    In: Nature conservation
    Volume: 31
    Date: 2018
    Page Range: 1-16
    Publication Info: Sofia, Bulgaria Pensoft Publishers 2012-
    Subjects: communal nesting  Conservation  illegal trade  Microhabitat requirements  natural predators  seasonal variation
  2. By: Sarzetti, Laura - Genise, Jorge Fernando - Sanchez, Maria Victoria
    Type: Article
    In: Journal of Hymenoptera research
    Volume: 39
    Date: 2014
    Page Range: 59-70
    Publication Info: Washington, D.C International Society of Hymenopterists
    Subjects: Andrenidae  communal nesting  fossil bee cells  nest architecture  nest reutilization  Oxaea austera  Oxaeinae