Columbia subject headings:
Harvard subject headings:
Bilingualism--Germany--History--21st century.
Education, Bilingual--Germany--History--21st century.
German language--Spoken German.
German language--Study and teaching--Russian speakers
German language--Written German.
Language and languages--Study and teaching--Germany--Bilingual method.
Multilingual communication--Germany--History--21st century.
Russian language--Spoken Russian--Germany.
Russian language--Study and teaching--German speakers
Russian language--Written Russian--Germany.
Princeton subject headings:
Bilingualism--Germany--History--21st century.
Education, Bilingual--Germany--History--21st century.
German language--Spoken German.
German language--Study and teaching--Russian speakers.
German language--Written German.
Language and languages--Study and teaching--Germany--Bilingual method.
Multilingual communication--Germany--History--21st century.
Russian language--Spoken Russian--Germany.
Russian language--Study and teaching--German speakers.
Russian language--Written Russian--Germany.