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Subclassification references

• Pacchiarotti, Sara and Chousou-Polydouri, Natalia and Bostoen, Koen 2019
• Bouka, Léonce Yembi and Ndamba, Josué 1992
• Rébecca Grollemund 2012
• Alewijnse, Bart and Nerbonne, John and van der Veen, Lolke J. and Manni, Franz 2007
• Niama-Niama, Japhet 2022
• Adam, Jean Jerome 1954

Comments on subclassification

Lane, Bryan David 1989