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Family membership references

• Bertinetto, Pier Marco 2010
• Willem F. H. Adelaar and Pieter C. Muysken 2004
• Luca Ciucci 2010

Comments on family membership

Willem F. H. Adelaar and Pieter C. Muysken 2004 , Luca Ciucci 2010 , Bertinetto, Pier Marco 2010

Comments on subclassification

Luca Ciucci 2010