Columbia subject headings:
Interlanguage (Language learning)
Language and languages--Study and teaching--Error analysis.
Phonetics--Study and teaching.
Russian language--Pronunciation by foreign speakers.
Russian language--Study and teaching--German speakers.
Harvard subject headings:
Interlanguage (Language learning)
Language and languages--Study and teaching--Error analysis
Phonetics--Study and teaching.
Russian language--Pronunciation by foreign speakers.
Russian language--Study and teaching--German speakers
Princeton subject headings:
Language and languages--Study and teaching.
Phonetics--Study and teaching.
Russian language--Pronunciation--Study and teaching.