Patterns of variation in the interlanguage of advanced second language learners / guest editors: Raymond Mougeon and Jean-Marc Dewaele. — Berlin. — New York : Mouton de Gruyter, 2004. — С. [7], 296―406. — (International review of applied linguistics in language teaching ; vol. 42, № 4) - Mougeon, R.; Dewaele, Jean-Marc (International review of applied linguistics in language teaching, 2004)