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2021.
Complexity and Its Relation to Variation.
Frontiers in Communication 6

Housen, Alex, Bastien De Clercq, Folkert Kuiken & Ineke Vedder
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Multiple approaches to complexity in second language research.
Second Language Research 35:1
► pp. 3 ff.

Karlsson, Fred
Rodríguez-Ordóñez, Itxaso & Lorena Sainzmaza-Lecanda
Zare, Mohammad, Mohammad Sadegh Bagheri, Firooz Sadighi, Ehsan Rassaei & Piotr Goel
2021.
An Investigation of the Linguistic Complexity of IELTS Writing Topics Based on the Levels of Discourse Representation and the Degree of Meaning Coding.
Cogent Education 8:1

This list is based on CrossRef data as of 18 march 2023. Please note that it may not be complete. Sources presented here have been supplied by the respective publishers.
Any errors therein should be reported to them.