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Subclassification references

• Tourneux, Henry 2003
• Richard Gravina 2014
• Barreteau, Daniel and Dieu, Michel 2000

Comments on subclassification

Tourneux, Henry 2003 Barreteau, Daniel and Dieu, Michel 2000: 65 against the grouping on very common sound changes suggested in Richard Gravina 2014: 46-47